3 years ago

Which is a solution to the equation? (x-2)(x=5)=18

Mathematics

2 answers:

4vir4ik [10]3 years ago

8 0

I hope this helps you

kobusy [5.1K]3 years ago

6 0

Expand
x^2+3x-10=18
minus 18 both sides
x^2+3x-28=0
find what 2 numbers mutiply to -28 and add to 3
7 and -3
(x+7)(x-3)=0
set each to zero

x+7=0
x=-7
x-3=0
x=3

x=-7 and 3

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