7x2 + 68xy - 20y2
(x + 5)(x^2 + 2x + 2)
7x2 plus 7x5 = 49
It can't be factored because its discriminant is less than zero
2x+5x-24 7x2-24
7x2 + 68xy - 20y2
(7x2 + 9)(4x - 1)
(7x + 5)(x - 2)
That doesn't factor neatly. Applying the quadratic formula, we find two real solutions: (3 plus or minus the square root of 2) divided by 7. x = 0.6306019374818707 x = 0.2265409196609864
That doesn't factor neatly. Applying the quadratic formula, we find two imaginary solutions: (1 plus or minus i times the square root of 69) divided by 7x = 0.142857 repeating + 1.1866605518454392ix = 0.142857 repeating - 1.1866605518454392iwhere i is the square root of negative one.
7x2 -4x -5x2 +2x = 2x2 -2x
The GCF is x2
7(x-5)^2
(x + 5)(x^2 + 2x + 2)
7x2 + 7x - 14 = 7(x2 + x - 2) = 7(x + 2)(x - 1)
7x2
7x2 plus 7x5 = 49