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ELEN [110]
3 years ago
10

How do you solve this?

Mathematics
1 answer:
Novay_Z [31]3 years ago
7 0

Let's solve your equation step-by-step.


−7x=−2x2+15


Step 1: Subtract -2x^2+15 from both sides.


−7x−(−2x2+15)=−2x2+15−(−2x2+15)


2x2−7x−15=0


Step 2: Factor left side of equation.


(2x+3)(x−5)=0


Step 3: Set factors equal to 0.


2x+3=0 or x−5=0


x=  \frac{-3}{2} or x=5

Answer:


x=    \frac{-3}{2} or x=5


Hope this helps

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Step-by-step explanation:

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Formula used =

(a-b)^2 = a^2+ 2ab + b^2

8 0
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