b) verify that - (3x+ 5y)²-30xy = 9x²+25y²
Answers
Answered by
3
Step-by-step explanation:
(3x+5y)^2-30xy
=9x^2+2×3x×5y+25y^2-30xy
=9x^2+30xy+25y^2-30xy
=9x^2+25y^2
hence, it is verified.
Answered by
1
Answer:
(3x+5y)^2 - 30xy = 9x^2+25y^2
Step-by-step explanation:
(9x^2+25y^2+30xy) -30xy = 9x^2+25y^2
9x^2+25y^2+30xy -30xy = 9x^2+25y^2
9x^2+25y^2 = 9x^2+25y^2
Hence verified
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