(x+7)(x+9) Do this math problem by using the Foil method.
2 answers:
Answer:
Step-by-step explanation:
F: x * x = x^2
O:9 * x = 9x
I : 7 * x = 7x
L: 7 * 9 = 63
x^2 + 9x + 7x + 63
x^2 + 16x + 63
Foil:
First term
Outer term
Inner term
Last term
By using foil we just times the first terms together so: x*x=x^2
Then we times the outer terms together so: x*9=9x
Then we times the inner terms together so:7*x=7x
Finally we times the last terms together so: 7*9=63
So our equation is:
X^2+9x+7x+63
Now we collect the like terms
Answer: x^2+16x+63
Hope this helped
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