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2 years ago

Solve x^2-8x-9=0 using the x method

Mathematics

2 answers:

Artist 52 [7]2 years ago

8 0

Answer: x=9,-1

Step-by-step explanation:

First, we are gonna start out with finding two numbers that multiply to equal -9 and add up to equal -8

Those numbers would be -9 & 1

-9+1=-8

-9x1=-9

Now we have

(x-9)(x+1)

x-9=0 x+1=0

+9 +9 -1 -1

x=9 x=-1

Nikitich [7]2 years ago

6 0

Answer:

x=1,--9

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero x=1,--9

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