Question

Asap show work if possible

use quadratic formula
2w^2-28w=-98


2n^2-6n=8


-3p+17p=20


2j^2-3j=-1

Answer 1

Quadratic Formula = -b +- √b²- √4ac all over 2a

2w² - 28w = -98
+98 +98
2w² - 28w + 98 = 0

The equation has to be set to ax² + bx + c = 0 in order to use the quadratic formula.
= - (-28) +- √(-28)² - √4(2)(98) ÷ 2(2)
= 28 +- √784 - √784 ÷ 4
= 28 +- 0 ÷ 4
= 28 ÷ 4
= 7

There is only one solution because the discriminant is 0.