Question

solve for x : (5x+1)(x+3)-8=5(x+1)(x+2).​

Answer 1

5x(x+3)+1(x+3)-8 = 5[x(x+2)+1(x+2)]

5x²+15x+x+3-8 = 5(x²+2x+x+2)

5x²+16x-5 = 5x²+15x+10

5x²-5x²+16x-15x = 10+5

x = 15

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Answer 2

Question:

to find the value of

5x+1)(x+3)-8=5(x+1)(x+2).

Solution:

( 5x+1) (x+3)-8=5(x+1)(x+2).

5 x² +16 x+ 3 -8 = 5[ x² + 3x +2]

5 x² +16 x+ 3 -8 =5 x²+15 x +10

5 x² +16 x+ 3 -8 -5 x²-15 x -10 = 0

x -15 = 0

x = 15

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