dingding2
dingding2
22-08-2017
Mathematics
contestada
How do I solve this problem?
Respuesta :
kphung76127
kphung76127
22-08-2017
When you have to multiply two binomials, foil them.
First: x*x=x^2
Outer: x*5=5x
Inner: -5*x=-5x
Last: -5*5=-25
Put it together
x^2+5x-5x-25
x^2-25
Final answer: x^2-25
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