How do you factor and solve #x^2 + 3x = 28 #?
1 Answer
Jul 14, 2016
(x - 4)(x + 7)
Explanation:
To factor it, find 2 numbers knowing sum (b = 3) and product (c = -28).
They make the factor pair: (-4, 7).
The 2 real roots are x = 4 and x = -7