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Set this equation equal to zero. Then, set each factor equal to zero, and solve for x 7x+7=0 x^2+5=0
x=-1 x=+ or - √-5
For this second answer, simplify this to + or - i√5. Note that if you were to distribute this, the highest exponent would be 3. This tells you how many answers there will be: -1 i√5 -i√5
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