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Verify the following: `(m + n) (m^2 – mn + n^2) = m^3 +

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

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Verify the following: `(a + b) (a + b) (a + b) = a^3 + 3a^2b + 3ab^2 +

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

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Verify the following: `(a – b) (a – b) (a – b) = a^3 – 3a^2b + 3ab^2 –

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

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Verify the following: `(a^2 – b^2) (a^2 + b^2) + (b^2 – c^2) (b^2 + c^2) + (c^2 – a^2) + (c^2 + a^2) =

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

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Verify the following: `(5x + 8)^2 – 160x = (5x –

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

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Verify the following: `(7p – 13q)^2 + 364pq = (7p +

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

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Verify the following:

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

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Find the value of a, if `8a = 35^2 –

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

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Find the value of a, if `9a = 76^2 –

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

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Find the value of a, if `pqa = (3p + q)^2 – (3p –

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

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Find the value of a, if `pq^2a = (4pq + 3q)^2 – (4pq –

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

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What should be added to `4c (– a + b + c)` to obtain `3a (a + b + c) – 2b(a – b +

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

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Subtract `b (b^2 + b – 7) + 5` from `3b^2 – 8` and find the value of expression obtained for `b = –

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

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If `x-1/x=7` then find the value of

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

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Factorise

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

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Factorise `p^4 + q^4 +

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

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Find the value of (i) `(6.25 6.25 –1.75 1.75)/4.5` (ii) `(198 198 –102

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

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The product of two expressions is `x^5 + x^3 + x`. If one of them is `x^2 + x+ 1`, find the

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

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Find the length of the side of the given square if area of the square is 625 square units and then find the value of x.

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

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Take suitable number of cards given in the adjoining diagram [G`(x xx x)` representing `x^2`, R `(x xx 1)` representing x and Y `(1 xx 1)` representing 1] to factorise the following expressions, by arranging the cards in the form of rectangles: (i) `2x^2 + 6x + 4` (ii) `x^2 + 4x + 4`. Factorise `2x^2 + 6x + 4` by using the figure.

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

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