Question

please anyone solve this question ​

Answer 1

Answer:

Step-by-step explanation:

x^2=25/4

x= 5/2

Answer 2

Answer

x=2.5; x=-2.5

Step-by-step explanation:

Formula: a^2-b^2=(a-b)*(a+b) because, (a-b)(a+b)=a^2+ab-ab-b^2=a^2-b^2.

4x^2-25=0

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

2x-5=0              2x+5=0

2x=5                  2x=-5    

x=2.5                 x=-2.5

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