Mathematics
KenyaMcdonalds87
12

Someone help me with these problems ASAP

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(1) Answers
LashaunTrolinger984

2x^4 + x^3 − 8x^2 − 4x = x ∙ (2x^3 + x^2 − 8x − 4) = x ∙ (x^2 ∙ (2x + 1) − 4 ∙ (2x + 1)) = x ∙ (x^2 − 4) ∙ (2x + 1) = x ∙ (x − 2) ∙ (x + 2) ∙ (2x + 1) Thus the roots are: x ∙ (x − 2) ∙ (x + 2) ∙ (2x + 1) = 0 ⇒ [x = 0] or [x − 2 = 0] or [x + 2 = 0] or [2x + 1 = 0] ⇒ [x = 0] or [x = 2] or [x = −2] or [x = − 1/2]

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