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11Alexandr11 [23.1K]
2 years ago
11

For questions 1 and 2, use factoring to find the x-intercepts of these quadratic equations.

Mathematics
1 answer:
Marysya12 [62]2 years ago
6 0
1.x^2 +6x - 4 = 6x
X^2 + 6x -4 - 6x = 0
X^2 - 4 = 0
By difference of two squares :
X^2 - 4 = 0 can be written as (x-2) (x+2) = 0
(X-2)=0 therefore x= 2

(X+2)=0 therefore x= -2

2. X^2 - 8x = -6x
X^2 -8x + 6x = 0
X^2 - 2x = 0
X(X-2) = 0
X= 0, X= 2
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