Answer:
Answer is =2x^3+3x^2-11x-6
Step-by-step explanation:
First of all multiply first and second bracket.
=x(2x+1) -2(2x+1)
=2x^2+x-4x-2
=2x^2-3x-2
Now multiply 2x^2-3x-2 with (x+3)
=x(2x^2-3x-2) +3(2x^2-3x-2)
=2x^3-3x^2-2x+6x^2-9x-6
=2x^3+3x^2-11x-6
63.6 feet
3p+10=28
-10 -10
3p=28-10
3p=18
p=18/3
p=6
4m + 5
Remove the parenthesis and collect like terms
3m + m + 5 = (3m + m) + 5 = 4m + 5
C
a = 18
3(x+6)-x = 2x + a
Distribute
3x +18 -x = 2x+a
2x +18 = 2x+a
Subtract 2x from each side
18 = a
