pls kindly solve these question pls
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Step-by-step explanation:
5. (7x-2y)²
(a²+ b²- 2ab) =(a-b)² use this formula
(7x)² +(2y)²-2×7x× 2y
49x² + 4y² - 28xy
Answered by
1
Answer:
4. 5x-10+4x-12+5x-20
=5x+4x+5x-10-12-20
=(5x+4x+5x)-(10+12+20)
=14x-42 (ans)
Step-by-step explanation:
5. 7x^2 - 2y^2
hope u like the answer
I started the answers from the second line.
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