Question

Q4. Solve for x :√6x+7-(2x-7) =0

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Answer 1

Answer:

ANSWER

Here,x=

2

3

does not satisfies the equation

Hence, x=7

Answer 2

Answer:

Q4. Solve for x :√6x+7-(2x-7) = 3/2

Sqrt (6x +7) - (2x -7) = 0

Squt (6x +7) = (2x -7)

Squring both sides

(squt (6x +7) ^2 = (2x -7)^2

6x +7 = 4x ^2 - 28x +49

0 = 4x ^2 - 28x +49 - 7

4x ^2 - 34x + 42 = 0

Divide each term with 2

2x ^2 - 17x +21 = 0

2x ^2 - 14x -3x +21 = 0

2x (x - 7) -3 (x - 7) = 0

(x - 7) (2x -3) = 0

x - 7 = 0 or 2x -3 = 0

x = 7 or 2x = 3

x = 7 or x = 3/2

=3/2√√√

Step-by-step explanation:

I hope its helps you