X is greater than or equal to 0
y is greater than or equal to 0
Answer:
The answer to the question is a
Answer:
Step-by-step explanation:
Foil or something
FOIL
First
Outer
Inner
Last
multipliy
First: k times k=k²
Outer: k times -1=-k
Inner: -3 times k=-3k
Last: -3 times -1=3
add
k²-k-3k+4=
k²-4k+4
B
a = - 15 and b = - 9
distribute the left side of the equation
- 15x² - 25x - 5b
for - 15x² - 25x - 5b and ax² - 25x + 45 to be equal then the coefficients of like terms must be equal, hence
- 15x² = ax² ⇒ a = - 15
- 5b = 45 ⇒ b = - 9
