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Recent questions tagged chapter9
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The irreducible factorisation of 3a3 + 6a
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Jan 17, 2022
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yogita
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#mcq
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a ( b + c) = ab + ac
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The representation of an expression as the product of its factors is called
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#fib
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(x + a) (x + b) = x2 + (a + b)x +
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An identity is true for all values of its
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Common factor of `x^2y` and `– xy^2` is
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`(3x + 3x^2) -: 3x =
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Simplify (i) `– pqr (p^2 + q^2 + r^2)` (ii) (px + qy) (ax –
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yogita
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#sub
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Find the expansion of the following using suitable identity.(i) (3x + 7y) (3x – 7y) (ii)
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Factorise the following. (i) `21x^2y^3 + 27x^3y^2` (ii) `a^3 – 4a^2 + 12 –
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Factorise the following. (i)4x^2 – 20x + 25 (ii) `(y^2/9-9)` (iii) `x^4 –
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Evaluate using suitable identities.(i) `(48)^2` (ii) `181^2 – 19^2` (iii) `497 xx 505` (iv) `2.07 xx
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Verify that`(3x + 5y)^2 – 30xy = 9x^2 +
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Verify that `(11pq + 4q)^2 – (11pq – 4q)^2 =
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The area of a rectangle is `x^2 + 12xy + 27y^2` and its length is (x + 9y). Find the breadth of the
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Divide 15 `(y + 3) (y^2 – 16) by 5 (y^2 – y –
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By using suitable identity, evaluate `x^2+1/x^2`, if
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Find the value of `(38^2-22^2)/16`, using a suitable identitysss
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Find the value of x, if `10000x = (9982)^2 – (18)^2`sss
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The product of a monomial and a binomial is
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