(2x + 5)^2 algebraic identites solve
Answers
Answered by
1
Answer:
(2x)^2+5^2+2×2x×5
4x^2+25+20x
4x^2+20x+25
4x^2+10x+10x+25
2x(2x+5)+5(2x+5)
(2x+5)(2x+5)
Step-by-step explanation:
hope it helps you
Answered by
2
Answer:
By Whole Square
(2x+5)^2
(2x) ^2 +(5)^2 +2(2x)(5)
4x^2 +25+20x
4x^2+20x+25
By Middle Term Splitting
4x^2+10x+10x+25
2x(2x+5)+5(2x+5)
(2x+5)(2x+5)=0
x=-5/2,-5/2
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