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dsp73
3 years ago
15

What are solutions to the equation below x^2 +3x-18=0

Mathematics
2 answers:
uysha [10]3 years ago
7 0

x^2+3x-18=0

(x+6)(x-3)


x=3,-6

zheka24 [161]3 years ago
7 0
You could plug it into a calculator to get your solutions or you could factor. Let's factor.

You need to find two numbers that when multiplied get you -18 and when added get you 3.

Let's get factors of -18:
1 × -18
2 × -9
3 × -6

The only factors that can get you that are -3 and 6.

(x-3)(x+6)=0

Set each factor equal to 0 and solve.
x-3=0
x=3

x+6=0
x=-6

Your solutions are 3 and -6.
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