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8 December, 12:02

What are the solutions to the equation x2 + 4x - 5 = 0?

+

+

+

5

+

4

+

-3

+

-2

+ +

-1,1

2

3

4

5

x

-5

a. 1 ałd - 5

b. - 1 and 5

d.

1 and - 5

+5
Answers (1)
  1. 8 December, 15:05
    0
    x²+4x-5 = 0

    =>x²+5x-x-5=0

    =>x (x+5) - 1 (x+5) = 0

    => (x+5) (x-1) = 0

    =>x = - 5 or, x = 1
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