Answer:
54
Step-by-step explanation:
First you take two and multiply it by three, which gives you 6. Then you multiply it by three and get 18. Then you multiply and get 54.
Answer:
f(-8) = 169
Step-by-step explanation:
Answer:
it it negative
Step-by-step explanation:
Answer:
A:29
Step-by-step explanation:
x²-4x-5=0
The given equation is quadratic
So we can perform prime factorisation of it.
factors of -5, that add up to give -4 are -5 and 1
therefore replacing -4x by -5x+x
x²-5x+x-5=0
performing factoring by grouping,
(x²-5x)+(x-5)=0
x(x-5)+(x-5)=0
(x+1)(x-5)=0
x+1=0 and x-5=0
Answer is x=-1 and x=5
