Answer: x=4 or x=−7
Step-by-step explanation:
Because.....
Step 1: Subtract 28 from both sides.
x^2+3x−28= 28 − 28
x^2+3x−28 = 0
Step 2: Factor left side of equation.
(x−4)(x+7)=0
Step 3: Set factors equal to 0.
x−4=0 or x+7=0
x=4 or x=−7
* You could use any of the answers.
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