Q. 1 D3.8( 4 Votes )

# Solve the following quadratic equations by factorization method.3(x2 – 6) =x (x + 7)–3

3(x2 – 6) =x (x + 7)–3

= 3x2 – 18 = x2 + 7x – 3

= 3x2 – 18 – x2 – 7x + 3 = 0

= 2x2 – 7x – 15 = 0

= 2x2 – 10x + 3x – 15 = 0

= 2x(x – 5) + 3(x – 5) = 0

= (2x + 3)(x – 5) = 0

2x + 3 = 0 or x – 5 = 0

2x = –3 or x = 5

or x = 5

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