The expression cannot be evaluated without knowing the value of x.
When factored it is: (x+9)(x-1)
(-9 x -8) + (-16) = (72) -16 = 56
a operation symbol is like minus(-) plus(+) multiply(X)and divide
a operation symbol is like minus(-) plus(+) multiply(X)and divide
It is: x^2 -9
x^2 +9 =x^2 -9 9=-9 No solution
x^2 +8x -9 is equivalent to (x+9)(x-1) when factored
(x - 6)(x + 9)
x + 5 - 2x = 9 -x = 4 x = -4
if x is equal to the square root of 81 then x is ±9 (plus or minus 9)
0
One possibility: (9 + 6 - 12) x 3 + 2 = 11