y^2-14y+49
(y-7)(y-7)
Answer:
60
Step-by-step explanation:
c
distribute the parenthesis by - 1 and collect like terms
= 5x² + 9x + 3 - 6x² + 3x
= (5x² - 6x²) + (9x + 3x) + 3
= - x² + 12x + 3 → c
sorry I don't know this
what grade topic is this