show that (3x+7)^2 -84x =(3x-7)^2
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Answered by
43
❄❄Hey Mate❄❄
❄❄Here is your Answer
As per identity :- a²+b²+2ab, So,
It is proved that
➡(3x+7)²-84x= (3x-7)²
❄❄HOPE IT HELPS❄❄
❄❄Here is your Answer
As per identity :- a²+b²+2ab, So,
It is proved that
➡(3x+7)²-84x= (3x-7)²
❄❄HOPE IT HELPS❄❄
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yash62134:
its ok sister
now please solve my answer
yeah...I am solving
If any other queries , you can ask me.. :)
(a-b) (a+b)+(b-c) (b+c) +(c+a)=0
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Answered by
24
☆ (3x + 7)² - 84x = (3x - 7)²
➥ (3x)² + 2 × 3x × 7 + (7)² - 84x
➥ 9x² + 42x + 49 - 84x
➥ 9x² - 42x + 49 = (3x - 7)²
➥ R.H.S.
☆ Hence proved.
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