3 years ago

Find x such that 2x^2 +2x=12

Mathematics

1 answer:

solmaris [256]3 years ago

4 0

Answer:

2 and -3

Step-by-step explanation:

2x^2=4x

4x+2x=12

6x=12

how many times does 6 go into 12?

right, 2 times!

x=2

---

2x^2+2x-12=0

x^2+x-6=0

(x+3)(x-2)=0

X=-3 and 2

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