Question

solve x^2 - 10x + 8 = 0.

Answer 1

x^2-10x+8=0
In this use quadric formula x2−10x+8=0

1x^2 −10x +8=0

a=1 b=−10 c=8

2. Substitute the a, b, and c values into the quadratic formula.

x=−b±√b2−4ac2a

x=−(−10)±√(−10)2−4(1)(8)2(1)

3. Solve for x.

x=10±√100−322

x=10±√682

x=10±2√172

x=2(5±√17)2(1)

x=2(5±√17)2(1)

x=5±√17

∴, x=5±√17.