15
It equals 285
x2+x-15 = 0 Using the quadratic equation formula: x = 3.405124838 or x = -4.405124838
15 squared is 15 x 15 which equals 225.
x2-35x+300 = 0 (x-15)(x-20) = 0 x = 15 or x = 20
(x + 5)(x - 3)
(x + 15)(x - 3)
15
(x - 5)(x - 3)
what is -12X squared +28X - 15? i figured it out myself. its (-6X + 5)(2X - 3).
3x^2 -14x +15 = (3x-5)(x-3)
15 to the 2nd power or 15 squared equals 15 * 15 which equals 225.
The answer to 5 squared plus 10 is found by squaring 5 (or multiplying it by itself, e.g. 5 * 5) which equals 25, and then adding 10 giving us 35. Therefore 5 squared plus ten = 35
15
x2 + 2x - 15 = 0(x + 5) (x - 3) = 0x = -5x = +3
It equals 285
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