X^2 - 12x + 11 = 0 Factor and solve

Question

Mathematics

Mathis

15 May, 22:40

X^2 - 12x + 11 = 0 Factor and solve

+3

Answers (2)

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Thalia Simmons · Answer 1

X^2 - 12x + 11 = 0 (-11*-1=11 and - 11+-1=-12)

(x-11) (x-1) = 0

x-11=0 x-1=0

x=11 or 1 < - - - answer

Lucille Eaton · Answer 2

You need to find the two numbers that add to b (-12) and multiply to a*c (1*11)

-11 (-1) = 11 and - 11 + (-1) = - 12, so you have:

(x-11) (x-1) = 0

Solve for each:

x-11=0 | x-1=0

x=11 | x=1

The solutions are 1 and 11.