Solve these :-
1. (9x/7 + 14/3 y)²
2. (7x/5 + 5y/49)²
3.(3x/7 + 2x/18)²
4.(5x/12) + 3y/11)²
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Answered by
2
Answer:
1. = [ 81x² / 49 + 196 / 9y² ]
2. = [ 49x² / 25 + 25y² / 2401 ]
Step-by-step explanation:
1. (9x/7 + 14/3 y)²
= [ (9²) (x²) / (7²) + (14²) / (3²) (y²) ]
= [ 81x² / 49 + 196 / 9y² ]
2. (7x/5 + 5y/49)²
= [ (7²) ( x²) / ( 5²) + (5² ) ( y²) / ( 49²) ]
= [ 49x² / 25 + 25y² / 2401 ]
Hope it helps
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