Question

xx+1=2x+5 identify the equation​

Answer 1

Answer:

x−1)(x+1)=(2x−5)(3x−7)

Let us simplify the given equation,

By  cross multiplying

(x−1)(3x−7)=(2x−5)(x+1)

3x2−7x−3x+7=2x2+2x−5x−5

3x2−10x+7−2x2+3x+5=0

x2−7x+12=0

By factorizing, we get

x2−4x−3x+12=0

x(x−4)−3(x−4)=0

(x−4)(x−3)=0

So, 

(x−4)=0 or (x−3)=0

x=4 or x=3

∴ Value of x=4,3

Answer 2

Answer:

x²-x-5=0.

Step-by-step explanation:

x(x+1)=2x+5

x²+x-2x=5

x²-x=5

x²-x-5=0.