81 x 2 - 16 = 146
x-7
The value of x is 7
2x squared minus 4
No, unless "a" happens to be equal to 0, or to 1.
3m^2 - 9m = 0 factor out 3m 3m(m - 3) = 0 m = 0 -------- or m = 3 --------
81 x 2 - 16 = 146
y squared minus 9 (y*y)- 9 cannot be solved because there is no given value for 9.
By factoring I get x-3 divided by x+3
(x+3)(x-3)
x-7
The value of x is 7
3x squared minus 25x minus 28
2x squared minus 4
No, unless "a" happens to be equal to 0, or to 1.
They are terms of an expression because without an equality sign it is not an equation.
x = ? 42 = x squared minus x