factorise using identity (5x-8)^2 .
Answers
Answered by
1
Answer:
25x² + 64 - 80 x
Step-by-step explanation:
(5x - 8)²
5x² + 8² - 2•5x•8
25x +64 -80x
Answered by
2
Answer:
25x^2+64-80x
Step-by-step explanation:
(5x-8)^2=(5x) ^2+(8)^2-2(5x)(8)
= 25x^2+64-80x
formula used
(a-b) ^2=a^2+b^2-2ab
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