The value of x which satisfies the equation 5(1 + x) + 5(1 – x) = 26 are?

-1, 1
0, 1
1, 2
-1, 0

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 1 : -1, 1

Solution∶

5^{(1 + x)} + 5^{(1 – x)} = 26

Using hit and trial method∶

1) -1, 1

Putting x = -1∶ 5^{(1 - 1)} + 5^{(1 + 1)} = 1 + 25 = 26

Putting x = 1∶ 5^{(1 + 1)} + 5^{(1 - 1)} = 25 + 1 = 26

∴ Both the values of x satisfies the given equation, hence option 1 is correct.

4 views Answered 2022-09-04 04:29

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