Question

9x⁴-x²-12x-36
Factorisation
Answer is (3x²+x+6)(3x²-x-6)

Answer 1

factorisation ques solution are on base on there equation.

Answer 2

9x⁴ - x² - 12x - 36

GROUPING AND TAKING THE MINUS (-) SIGN OUT

9x⁴ - (x² + 12x + 36)

9x⁴ IS WRITTEN AS (3x²)²

x² + 12x + 36 IS WRITTEN AS [(x)² + 2(6)(x) + (6²)] IMPLIES (x+6)²

A² + B² = [(A)² + OR - 2(A)(B) + (B)²]

SO, (3x²)² - (x+6)²

A² - B² = (A+B) (A-B)

(3x² - x - 6) (3x² + x + 6)