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2 years ago

A part of Jennifer’s work is to solve the equation 2(6x^2-3)=11x^2-x is shown below

Mathematics

1 answer:

kotykmax [81]2 years ago

7 0

Answer:

Step-by-step explanation:

2(6x² - 3) = 11x² - x

2*6x² - 2*3 = 11x² - x

12x² - 6 = 11x² -x

Subtract 11x² from both sides

12x² - 11x² - 6 = -x

x² - 6 = -x

x² + x - 6= 0

Sum =1

Product = -6

Factors = 3 , (-2) { 3*(-2) = -6 & 3 +(-2) = 1}

x² + 3x - 2x - 6 = 0

x(x + 3) - 2(x + 3)= 0

(x +3)(x - 2) = 0

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