Question

(x+1)(x^2-2)=(x+3)
Is a quadratic equation or not??
Pls. give full solution.​

Answer 1

Answer:

(x+1)(x^2-2)=(x+3)

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

x^3+x^2-3x-5=0 not a quardratic equation

Answer 2

Answer:

Step-by-step explanation:

Given that,

( x + 1 ) ( x² - 2 ) = x + 3

x ( x² - 2 ) + 1 ( x² - 2 ) = x + 3

x³ - 2x² + x² - 2 = x + 3

x³ - x² - 2 - x - 3 = 0

x³ - x² - x - 5 = 0

Hence, it is not a quadratic equation.