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What mistake did Anna make? (Image attached)

Ps. The roots are -4, -2, -1/2, and 2

What mistake did Anna make? (Image attached) Ps. The roots are -4, -2, -1/2, and 2-example-1
User Froyo
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x * 2x = 2x ^(2)

not x^2

What mistake did Anna make? (Image attached) Ps. The roots are -4, -2, -1/2, and 2-example-1
User Jmaloney
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