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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `28ay^2 –

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `9x^2 –

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`.

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`.

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`.

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`.

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `y^4 –

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `x^2 –

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `51x^3y^2z -:

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Factorise the expressions and divide them as directed: `(x^2 – 22x + 117) -: (x –

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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Factorise the expressions and divide them as directed: `(2x^3 – 12x^2 + 16x) -: (x – 2) (x –

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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The curved surface area of a cylinder is `2pi (y^2 – 7y + 12)` and its radius is (y – 3). Find the height of the cylinder (C.S.A. of cylinder

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle.

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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If a + b = 25 and `a^2 + b^2 = 225`, then find

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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If m – n = 16 and `m^2 + n^2 = 400`, then find

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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If `a^2 + b^2 = 74` and ab = 35, then find a +

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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Verify the following: `(ab + bc) (ab – bc) + (bc + ca) (bc – ca) + (ca + ab) (ca – ab) =

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Verify the following:

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Find the value of a, if `8a = 35^2 –

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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