IDNLearn.com is your trusted platform for finding reliable answers. Get comprehensive answers to all your questions from our network of experienced experts.
Answer:
y = 3x² + 15x + 12
Step-by-step explanation:
A quadratic function in standard form is
y = ax² + bx + c ( a ≠ 0 )
Given
y = 3(x + 4)(x + 1) ← expand the factors using FOIL
= 3(x² + 5x + 4) ← distribute parenthesis by 3
= 3x² + 15x + 12