Factorise -a2-b2-4 a c-4 c2My attempt a2-b2-4 ca-c-a-ba-b-4 ca-cPlease help me rectify the error and how to solve this problem further-

(a^2 4ac +4c^2) b^2 (a^2 2ac 2ac+4 c^2) b^2 a(a 2c) 2c(a 2c) b^2 (a 2c)(a 2c) b^2. ...

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Polynomials

Factorise :a2...

Question

Factorise :

$a ² - b ² - 4 a c + 4 c ²$

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4 a^{2} + b^{2} + c^{2} - 4 a b + 2 b c - 4 c a

Question 92 (xxvi)

Factorise the following using the identity $a^{2} - b^{2} = (a + b) (a - b) .$

$(a - b)^{2} - (b - c)^{2}$

\frac{a^{2} - b^{2} - c^{2}}{(a - b) (a - c)} + \frac{b^{2} - c^{2} - a^{2}}{(b - c) (b - a)} + \frac{c^{2} - a^{2} - b^{2}}{(c - a) (c - b)}

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

36 x^{2} - 25

\frac{\sqrt{a^{2} - b^{2}} + a}{\sqrt{a^{2} + b^{2}} + b} \div \frac{\sqrt{a^{2} + b^{2}} - b}{a - \sqrt{a^{2} - b^{2}}} = \frac{b^{2}}{d^{2}}

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