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Mathematics
23 July, 19:06
Find the equation for the roots 7 and - 2.
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Answers (
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Lisa Wade
23 July, 19:15
0
(x - 7) (x + 2)
Step-by-step explanation:
Create equation-
(x - 7) (x + 2)
Multiply-
Take the term multiply it with each variable or number and add with the product of the second term multiplied with the variable and number, as so:
x * x = x^2
x * 2 = 2x
-7 * x = - 7x
-7 * 2 = - 14
x^2 + 2x - 7x - 14
Combine like terms
x^2 - 5x - 14
To confirm
-14
-7 and 2 go into - 14 and add to - 5
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