Function f(x)=2x+1 and g(x)=x^2+1 and f(x)=g(x) then find the value of x

Question

asked Dec 14, 2021 226k views

1 Answer

Sergiu Marsavela · Answer 1 · 2021-12-18T09:31:23+0000

Answer:

x = 0 or x = 2

Explanation:

Since f(x) = g(x) then equate the right sides, that is

x² + 1 = 2x + 1 ( subtract 2x + 1 from both sides )

x² - 2x = 0 ← in standard form

x(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x = 0

x - 2 = 0 ⇒ x = 2