Question

Find the value of x: (x + 1) (x + 3) = (x + 4) (x – 1)​

Answer 1

Answer:

x = -7

Step-by-step explanation:

(x+1)(x+3)=(x+4)(x−1)

Step 1: Simplify both sides of the equation.

x2+4x+3=x2+3x−4

Step 2: Subtract x^2 from both sides.

x2+4x+3−x2=x2+3x−4−x2

4x+3=3x−4

Step 3: Subtract 3x from both sides.

4x+3−3x=3x−4−3x

x+3=−4

Step 4: Subtract 3 from both sides.

x+3−3=−4−3

x=−7

Answer 2

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Find the value of x:

Find the value of x:(x + 1) (x + 3) = (x + 4) (x – 1)

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(x+1)(x+3) = (x+4)(x-1)

x²+3x+x+3 = x²+4x-x-4

x²+4x+3 = x²+3x-4

x²+4x+3-x²-3x+4 = 0

x+7 = 0

x = -7