Question

Simplify (9x^2-x+15)(x^2-3)-(3x^2+5x-9)(3x-9) then find the value of the expression when x=1.please give proper solution... I will mark u as brainlist

Answer 1

$\huge{\underline{\underline{\color{darkblue}{\bf{Solution}}}}}$

Given:-

x = 1

(9x²-x+15)(x²-3)-(3x²+5x-9)(3x-9)

[9(1)²-1+15][(1)²-3]-[3(1)²+5×1-9][3×1-9]

[9+14](-2)-[3+5-9](-6)

23×(-2)-(-1)(-6)

-46+1×(-6)

-46-6

-52