Answer:
Step-by-step explanation:
a³+b³=(a+b)(a²-ab+b²)
x³+216=x³+6³=(x+6)(x²-6x+6²)=(x+6)(x²-6x+36)
Answer:
30? lol im guessing? idk...lol
Step-by-step explanation:
Answer:
1.2
Step-by-step explanation:
First you multiply -2 and 0.7
Which is -1.4
-1.4-1 is
-2.4/-2
is 1.2
So you are correct the answer is
1.2
Good Job on getting it!
Answer:
Step-by-step explanation:
x(3x+2)=16
3x²+2x-16=0
3x²+8x-6x-16=0
x(3x+8)-2(3x+8)=0
(3x+8)(x-2)=0
either 3x+8=0
x=-8/3(rejected as width can't be negative)
x-2=0
x=2
so width=2
length=3×2+2=6+2=8
