Question

Solve using quadratic equation​

Answer 1

5, - 5

Explanation:

x^2 = 25

x = ± √25

= ± 5

x = 5, - 5

Answer 2

±5 is your answer

Explanation:

x²-25=0

comparing above equation with ax²+bx+c

we get

a=1

b=0

c=-25

by using quadratic equation

x=(-b±√(b²-4ac))/2a=(-0±√(0²-4×1×-25))/2×1

=±{√(100)}/2=±(√10²)/2=±10/2=±5