Mathematics: Use the zero product property to find the solutions to the equation 2x2 + x – 1 = 2.

Use the zero product property to find the solutions

fgcherubin

05.02.2022

$2 {x}^{2} + x - 1 = 2$

Subtract sides -2

$2 {x}^{2} + x - 1 - 2 = 2 - 2$

$2 {x}^{2} + x - 3 = 0$

(x - 1)(2x + 3) = 0

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x - 1 = 0

x = 1

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2x + 3 = 0

$x = - \frac{3}{2} \\$

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Done♥️♥️♥️♥️♥️

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emmaogle2003

25.08.2021

a = -4/5

Step-by-step explanation:

12a - 4(5a -1) = 2(3a +6) - 4a

12a - 20a + 4 = 6a + 12 - 4a

12a - 20a - 6a + 4a = 12 - 4

-10a = 8

a = - 8/10

a = - 4/5

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