Q1 of 227 Page 103

Solve the following quadratic equations by factorization method.
3x² –5x –12 = 0

3x² – 5x –12 = 0

= 3x² – 9x + 4x – 12 = 0

= 3x (x – 3) + 4(x – 3) = 0

= (3x + 4) (x – 3) = 0

3x + 4 = 0 or x –3 = 0

3x = –4 or x = 3

or x = 3

Find the values of a and b if the following polynomials are perfect squares.

a x⁴–bx³ + 40 x² + 24x + 36

Solve the following quadratic equations by factorization method.

(2x + 3)² – 81 = 0

Solve the following quadratic equations by factorization method.

3(x² – 6) =x (x + 7)–3

Solve the following quadratic equations by factorization method.3x2 –5x –12 = 0