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Finding Squares of Numbers

1. Write the ...

Question

1.Write the expansion of ( x- y ) square. Using the identity factorise 4x square-12x+9

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Solution

(x-y)² = x² -2xy -y²

4x² - 12x + 9 = (2x -3)²

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Similar questions

Q. Question 89 (ix)

Factorise the following, using the identity,

a^{2} + 2 a b + b^{2} = (a + b)^{2}

4 x^{2} + 12 x + 9

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Q. Determine the square root of the polynomial using factorisation method:

\sqrt{\frac{81 (x + y)^{2} (x - y)^{8}}{9 (x - y)^{4}}}

Q. Factorise the following using identities.

x^{2} + 12 x + 36

Q. Using appropriate identity, factorise

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Finding Squares of Numbers

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