3 suared is 9, -1 is 8 all over 3+1 is 4
8/4 =2
x^2 + (x + 7)^2 = (2x + a million)^2 x^2 + (x + 7)(x + 7) = (2x + a million)(2x + a million) x^2 + x*x + 7*x + x*7 + 7*7 = 2x*2x + a million*2x + 2x*a million + a million*a million x^2 + x^2 + 7x + 7x + 40 9 = 4x^2 + 2x + 2x + a million 2x^2 - 4x^2 + 14x - 4x + 40 9 - a million = 0 -2x^2 + 10x + 40 8 = 0 (-2x^2 + 10x + 40 8)/-2 = 0/-2 x^2 - 5x - 24 = 0 x^2 + 3x - 8x - 24 = 0 (x^2 + 3x) - (8x + 24) = 0 x(x + 3) - 8(x + 3) = 0 (x + 3)(x - 8) = 0 x + 3 = 0 x = -3 x - 8 = 0 x = 8 ? x = -3 , 8
-8 1/3
By plugging in the -3 into the power -x squared, it becomes a negative 9.
-9 + 1 / - (-3) + 1
It becomes -(9) + 1/3 + 1. Use KCC and you would get -8 1/3
Hope this helps! :)
Ouch my head hurts just looking at that
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3 suared is 9, -1 is 8 all over 3+1 is 4
8/4 =2
x^2 + (x + 7)^2 = (2x + a million)^2 x^2 + (x + 7)(x + 7) = (2x + a million)(2x + a million) x^2 + x*x + 7*x + x*7 + 7*7 = 2x*2x + a million*2x + 2x*a million + a million*a million x^2 + x^2 + 7x + 7x + 40 9 = 4x^2 + 2x + 2x + a million 2x^2 - 4x^2 + 14x - 4x + 40 9 - a million = 0 -2x^2 + 10x + 40 8 = 0 (-2x^2 + 10x + 40 8)/-2 = 0/-2 x^2 - 5x - 24 = 0 x^2 + 3x - 8x - 24 = 0 (x^2 + 3x) - (8x + 24) = 0 x(x + 3) - 8(x + 3) = 0 (x + 3)(x - 8) = 0 x + 3 = 0 x = -3 x - 8 = 0 x = 8 ? x = -3 , 8
-8 1/3
By plugging in the -3 into the power -x squared, it becomes a negative 9.
-9 + 1 / - (-3) + 1
It becomes -(9) + 1/3 + 1. Use KCC and you would get -8 1/3
Hope this helps! :)
Ouch my head hurts just looking at that