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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 by vaibhav (1.7k points)

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Perform the following divisions: `(3pqr – 6p^2q^2r^2) -:

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

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

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

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The sum of first n natural numbers is given by the expression `n^2/2+n/2`. Factorise this

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

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The sum of (x + 5) observations is `x^4 – 625`. Find the mean of the

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

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

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

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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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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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`(–10) xx (–10) xx (–10) xx (–10) =

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

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Find x so that `(–5)^(x+1) xx (–5)^5 =

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

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

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

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The value of `(-2/3)^4` is equal

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

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`((-7)/5)^(-1)` is equal

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

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

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

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The standard form for 234000000

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

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Which of the following is not the reciprocal of `(2/3)^4`

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

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50 =

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

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`5^5 xx 5^(–5)` =

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

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