This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
The functions f and g are defined by f(x) = 2x2 and g(x) = (3x-2)/(x+1). Find fog(x).
Mathematics

ScanSolve AI Answer
Answer
Step 1: Identify the given functions. The functions are defined as:
Step 2: Understand the composite function . The notation means . This involves substituting the entire function into wherever 'x' appears in .
Step 3: Substitute into . Replace in with :
Step 4: Simplify the expression. Square the fraction: Expand the numerator and the denominator : Substitute these expanded forms back into the expression: Multiply the numerator by 2:
The composite function is:
Was this helpful?
Still stuck on this one?
Ask a follow-up, and the answer starts from this question.
Got a different question?Ask your own question
More Mathematics Questions
QGiven f(x) = sqrt(2-x) and g(x) = x2+5, find fog and gof.Qf(x) = x2 + 2x - 1, g(x) = 2x - 3. Find a) fog, b) gof, c) gotogQGiven functions f(x) = 2x2 - (3x)/(4) and g(x) = (x+1)/(1-2x), find the values of x for which g(x-1)…QThe functions f and g are defined as f:x 2192 x - 2 and g:x 2192 2x2 - 1. Solve: i. f(x) = g(-1/2) i…QGiven f g(x) = (x+2)/(3) and g(x) = 2x+5.
ScanSolve AI Answer
Step 1: Identify the given functions. The functions are defined as: f(x) = 2x^2 g(x) = (3x-2)/(x+1) Step 2: Understand the composite function (f g)(x). The notation (f g)(x) means f(g(x)). This involves substituting the entire function g(x) into f(x) wherever 'x' appears in f(x). Step 3: Substitute g(x) into f(x). Replace x in f(x) = 2x^2 with g(x) = (3x-2)/(x+1): f(g(x)) = 2((3x-2)/(x+1))^2 Step 4: Simplify the expression. Square the fraction: f(g(x)) = 2 · ((3x-2)^2)/((x+1)^2) Expand the numerator (3x-2)^2 and the denominator (x+1)^2: (3x-2)^2 = (3x)^2 - 2(3x)(2) + (-2)^2 = 9x^2 - 12x + 4 (x+1)^2 = x^2 + 2(x)(1) + 1^2 = x^2 + 2x + 1 Substitute these expanded forms back into the expression: f(g(x)) = 2 · (9x^2 - 12x + 4)/(x^2 + 2x + 1) Multiply the numerator by 2: f(g(x)) = (2(9x^2 - 12x + 4))/(x^2 + 2x + 1) f(g(x)) = (18x^2 - 24x + 8)/(x^2 + 2x + 1) The composite function is: (18x^2 - 24x + 8)/(x^2 + 2x + 1)