please help me l will put the brainliest answer who had the correct answer
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1)
a) (3x-2) (5x+6) + (x+1) (3x-2)
= 6x^2 + 18x - 10x - 12 + 3x^2 -2x+3x-2
= 9x^2 + 9x - 14
= 9x(x+1) -14
b) (4x-3) ^2 - (x-1)^2
= 16x^2. - 24x + 9 - x^2 -2x - 1
=15x^2 - 22x + 8
2)
a)
9x^2 + 9x - 14 = 9x^2 + 21x - 12x - 14
= 3x(3x-4) + 7(3x-2) = (3x+7)(3x-2)
b) 15x^2 - 22x + 8 = b(x)
=15x^2 -10x - 12x + 8 = b(x)
= 5x(3x-2) - 4(3x-2) = (5x-4) (3x-2)
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