108. (x² + 6x + 9) = (x + 3)(x - a) then a is (1) -3 (2)3 (3) 2 (4) -2
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108. (x² + 6x + 9) = (x + 3)(x - a) then a is (1)-3
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Given: (x² + 6x + 9) = (x + 3)(x - a)
Factorizing:
x²+6x+9
=x²+3x+3x+9
=x(x+3)+3(x+3)
=(x+3)(x+3)
Therefore,
a=-3
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