Question

Solve this quadratic equation using the quadratic formula.

2x^2 - 10x + 7 = 0

the answer ive been getting doesn't fit in the answer blank I was given

Answer 1

Here a = 2, b = -10, c = 7, so

( - b ± √ (b² - 4ac) ) / (2a)
= ( 10 ± √ (10² - 4(2)(7)) ) / (2(2))
= ( 10 ± √ (100 - 56) ) / (4)
= ( 10 ± √ 44 ) / (4)
= ( 5 ± √ 11 ) / (2).

Answer 2

thank you I was getting 10 (plus or minus) 44

Answer 3

haha your welcome !