Question

2x^3+8x²=-6x²=-4x²=76


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Answer 1

2x^3+8x²=-6x²=-4x²=76

2x³ + 8x² = - 6x² = - 4x² = 76

2x³ + 8x² = 76
2x²(x - 8) = 76

2x² = 76
 x² = 76/2
x² = 38
x = ⁺⁻  √38  = - √38 e +√38

x - 8 = 76
x = 76 + 8
x = 84

- 6x² = 76
x² = 76/-6
x² = -76/6
x= -+√-76/6-------V =Ф

- 4x² = 76
x² = 76/-4
x² = -76/4
x = - + √-76/4-------V = Ф