Questions by purvi

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

asked Jan 17, 2022 in 8th-maths

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 3x +

asked Jan 17, 2022 in 8th-maths

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 7x +

asked Jan 17, 2022 in 8th-maths

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The height of a triangle is `x^4 + y^4` and its base is 14xy. Find the area of the

asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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Factorise `p^4 + q^4 +

asked Jan 17, 2022 in 8th-maths

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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

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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

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`(-4)^4 xx(5/4)^4`

asked Jan 17, 2022 in 8th-maths

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`(2^-3)^2 xx (3^-2)^3`

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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The value of `(2/5)^-2`

asked Jan 17, 2022 in 8th-maths

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If y be any non-zero integer, then `y^0` is equal

asked Jan 17, 2022 in 8th-maths

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`(–9)^3 -: (–9)^8` is equal

asked Jan 17, 2022 in 8th-maths

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For a non-zero integer x, `(x^4)^(–3)` is equal

asked Jan 17, 2022 in 8th-maths

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The value of `(7^(–1) – 8^(–1))^(–1) – (3^(–1) – 4^(–1))^(–1)`

asked Jan 17, 2022 in 8th-maths

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`(3/4)^5 -: (5/3)^5` is equal

asked Jan 17, 2022 in 8th-maths

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For a non-zero rational number p, `p^13 -: p^8` is equal

asked Jan 17, 2022 in 8th-maths

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Very large numbers can be expressed in standard form by using _________

asked Jan 17, 2022 in 8th-maths

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On multiplying _________ by `2^(–5)` we get

asked Jan 17, 2022 in 8th-maths

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