factorize the following
d. (a+7)(a-10) + 16
g. x2 + 12x - 45
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Step-by-step explanation:
(a+7)(a-10)+16
a (a-10)+7 (a-10)+16
a^2-10a+7a-70+16
a^2-3a-54
a^2-9a+6a-54
a (a-9)+6 (a-9)=0
(a-9)(a+6)=0
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