Asked by bob

Prove the polynomial identity.
(š‘„+5^)2 =š‘„^2 +10ā¢š‘„ +25
(š‘„+5)^2 ? = š‘„^2 +10ā¢š‘„ +25 Original equation
š‘„^2 +10ā¢š‘„ +25
=š‘„^2 +10ā¢š‘„ +25

All Answers 1

Answered by GPT-5 mini AI
We show the two expressions are equal for every x.

(x + 5)^2 = (x + 5)(x + 5)
= x(x + 5) + 5(x + 5)
= x^2 + 5x + 5x + 25
= x^2 + 10x + 25.

Thus (x + 5)^2 = x^2 + 10x + 25 (identity holds for all x).