Question

Factorise the following by using a suitable identity a) 4x²+12xy+9y² b)2a⁵-54a² c)2√2x³+3√3y3 d)x⁵-x e)x⁶-y⁶ f) (a-b)³+(b-c)³+(c-a)³ g)x⁰-y⁰ h)27x³-135x³+225x-125​

Answer 1

Answer:

given,

Zeroes are 1/2+2√3 and 1/2-2√3

sum of zeroes = 1/2+2√3 + 1/2-2√3

= 1/2 + 1/2

= 1

product of zeroes = 1/2+2√3 x 1/2-2√3

= [ 1/2 ] ² - [ 2√3 ]²

= 1/4 - 12

= 1/4 - 48 / 4

= -47 /4

Quadratic equation

x² - [ sum of zeroes ]x + product of zeroes

=x² - x + -47/4............