SOLUTION: Find the x-intercepts for the graph of the equation y=x^2-3x-4. The x-intercepts are _________ help?

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Question 375783: Find the x-intercepts for the graph of the equation y=x^2-3x-4.
The x-intercepts are _________
help?
Found 2 solutions by Fombitz, ewatrrr:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2-3x-4=0
%28x-4%29%28x%2B1%29=0
Two solutions:
x-4=0
highlight%28x=4%29
.
.
.
x%2B1=0
highlight%28x=-1%29

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Finding the x-intercepts for the graph of the equation 

y=x^2-3x-4 (y=0 when the graph crosses the x-axis)

0 = x^2-3x-4

solving by factoring

(x-4)(x+1)=0 Note:SUM of the inner product(-4x) and the outer product(1*x) = -3x

(x-4)=0

x=4

(x+1)=0

x = -1