Question

Please help asap

A: What are the solutions to the quadratic equation 4x2+25=0?
B: What is the factored form of the quadratic expression 4x2+25?
Select one answer for question A, and select one answer for question B.

B: (x−2i)(x+5i)
B: (2x−5i)(2x+5i)
B: (x−52i)(x+25i)
B: (2x−5i)(2x−5i)
A: x=52i or x=−52i
A: x=2i or x=5i
A: x=−52i
A: x=52i

Answer 1

Explanation:

4x²+25=0

4x²-(-25)=0

4x²-(25×-1)=0

4x²-(25i²)=0

(2x)²-(5i)²=0

(2x+5i)(2x-5i)=0

either 2x+5i=0

x=-5i/2

or 2x-5i=0

x=5i/2