Question

simplify the expression 5^2 -4 over 5 + 2

Answer 1

5^2 - 4 = 5^2 - 2^2

Answer 2

that's not one of my answers

Answer 3

a^2 - b^2 = (a + b)(a - b)

Answer 4

\[\frac{ 5^2-4 }{ 5+2 }=\frac{ 25-4 }{ 7 }=\frac{ 21 }{ 7 }\]

Answer 5

\[21 \div 7=?\]

Answer 6

3

Answer 7

Then 3 is the simplified form of the expression.

Answer 8

thank you