Math, asked by aashi2006, 11 months ago

please find the value of x that is given with the attachment.

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Answers

Answered by monty842311

Answer:

Step-by-step explanation:

(x+1)(2x+5) - 2x²-5 = 3(x-2)

2x²+5x+2x+5-2x²-5 = 3x-6

5x=3x-6

2x= -6

x = -3

aashi2006: but the answer should come -3/2

monty842311: oh sorry see 5x + 2x = 3x -6, 7x = 3x-6, 4x= -6, x= -6/4, x= -3/2, i left 2x from LHS

Answered by salininishil535

Answer:

Step-by-step explanation:

(x+1)x(2x+5) = 2x2 + 5x + 2x+ 5

=> 2x2 + 5x + 2x + 5 -2x2 - 5x

= 7x -----------------> 1

3(x-2) = 3x-6 _____________>

equation 1 and 2

=> 7x= 3x - 6

=> 7x - 3x = -6

=> 4x = -6

=> x=-6/4

Hence proved.....

aashi2006: thanks a lot

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