Answer: x =(20-√432)/2=10-6√ 3 = -0.392
Step-by-step explanation:
The first term is, x2 its coefficient is 1 .
The middle term is, -20x its coefficient is -20 .
The last term, "the constant", is -8
Step-1 : Multiply the coefficient of the first term by the constant 1 • -8 = -8
Step-2 : Find two factors of -8 whose sum equals the coefficient of the middle term, which is -20 .
