Slothfuldreamz Slothfuldreamz

15-09-2016
Mathematics

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The expression x-2 has a value of -5 for some value of x. For the same value of x, what is the value of the expression (x-2)² + 5x-10? Please show work if you can.

(1) 0 (3) 14

(2) 15 (4) -10

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texaschic101 texaschic101

15-09-2016

x - 2 = -5
x = -5 + 2
x = -3

(x-2)^2 + 5x - 10...when x = -3
(-3-2)^2 + 5(-3) - 10
-5^2 - 15 - 10
25 - 15 - 10
10 - 10
0 <===

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