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`(a + b) (a – b) = a^2 –

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Common factor of `12a^2b^2 + 4ab^2 – 32` is

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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Factorised form of `p^2 + 30p + 216` is `(p + 18) (p –

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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Add: `2p^4 – 3p^3 + p^2 – 5p +7, –3p^4 – 7p^3 – 3p^2 – p –

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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Multiply the following: 6mn,

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Expand the following, using suitable identities. (x + 3) (x +

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Expand the following, using suitable identities. `(0.9p –

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Using suitable identities, evaluate the following. `47 xx

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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Write the greatest common factor in each of the following terms. `21pqr, –7p^2q^2r^2,

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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Factorise the following expressions. `ax^3 – bx^2 +

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Factorise the following expressions. `2x^2 – 2y + 4xy –

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Factorise the following, using the identity `a^2 + 2ab + b^2 = (a + b)^2` `a^2x^2 + 2ax +

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Factorise the following, using the identity `a^2 – 2ab + b^2 = (a – b)^2`. `4y^2 – 12y +

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Factorise the following. `x^2 – 10x +

asked Jan 17, 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)`. `y^4 –

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `–121p^3q^3r^3 -:

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Factorise the expressions and divide them as directed: `(x^4 – 16) -: x^3 + 2x^2 + 4x +

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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The base of a parallelogram is (2x + 3 units) and the corresponding height is (2x – 3 units). Find the area of the parallelogram in terms of x. What will be the area of parallelogram of x = 30

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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The figure shows the dimensions of a wall having a window and a door of a room. Write an algebraic expression for the area of the wall to be painted.

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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