please tell the answer step by step
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Answered by
1
Answer:
Step-by-step explanation:
First we solve LHS
there is only single value of x
Answered by
1
Answer:
x=10
Step-by-step explanation:
x²- 14x + 49 / x²-49 = 3/17
x² - 2 (7×1)x + 7² / x² - 7² = 3/17 (a-b)² = a² -2ab + b²
(x-7)² / (x+7)(x-7) = 3/17 a²-b² = (a+b)(a-b)
(x-7)(x-7) / (x+7)(x-7) = 3/17 (x-7)² = (x-7)(x-7)
x-7 / x= 7 = 3 / 17 {cutting x-7 from numerator and denominator}
17(x-7)= 3(x+7) {cross multiplication}
17x - 119 = 3x + 21 {opening the bracket}
17x - 3x = 21 + 119
14x = 140
x = 140/40
x = 10
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