momentum90 momentum90

11-03-2019
Mathematics

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choixongdong choixongdong

11-03-2019

Answer:

a) Should that 2x^2 + 3x - 20 = 0

Answer is YES

Step-by-step explanation:

30 = 1/2[4(x - 1) (2x+5)]

30 =2(x - 1) (2x+5)

30 = 2(2x^2 + 5x - 2x - 5)

30 = 2(2x^2 + 3x - 5)

15 = 2x^2 + 3x - 5

2x^2 + 3x - 20 = 0

a) Should that 2x^2 + 3x - 20 = 0

Answer is YES

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