What will be the value of x, if 5^(x +3) = 25 (3x - 4)?
- 11/6
- 11/5
- 5/11
- None of these
Explanation
5^(x + 3) = 25(3x - 4)
Rewrite 25 as 5²:
5^(x + 3) = 5²(3x - 4)
Equate the exponents:
x + 3 = 2(3x - 4)
Simplify:
x + 3 = 6x - 8
Subtract x from both sides:
3 = 5x - 8
Add 8 to both sides:
11 = 5x
Divide by 5:
x = 11/5
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- 10 and 30
- 15 and 25
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اس سوال کو وضاحت کے ساتھ پڑھیں
- (t² + 4)(t - 2)(t - 2)
- (t² - 4)(t² - 4)
- (t² + 4)(t + 2)(t - 2)
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- +4
- -4
- +16
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
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