X^2-2x -3 =0
a =1 b =-2 and c = -3
x = - (-2) +/- sqrt (-2)^2 - 4(1)(-3)
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2(1)
x = + 2 +/- sqrt [(4) - 4(-3)]
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2
x = +2 +/- sqrt [4 + 12]
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2
x = +2 +/- sqrt[16]
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2
x = +2 +/- (4)
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2
x = 2 + 4 or 2 -4
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2 2
x = 6/2 or -2/2
x = 3 or x = -1
It would be associative property of multiplication because you are shifting the parentheses from around a and b to 4 and a; and if you plug in 1 for a and 2 for b, you will find that both sides equal 8. Hope this helps! :)
Answer: e=10
9e+4=-5e+14+13e
14e=10+13e
e=10
Answer:
12
Step-by-step explanation:
plug in -7 where x is
5 - (-7) = 12
Answer:
10(n+4)
Step-by-step explanation:
this is the equation, simplified is
10n+40
