10 + 80 = 90 subtract 90 to other numbers to get more equations
Answer:
<u><em>105</em></u>
Step-by-step explanation:
<em>a = 5</em>
<em>=> 3a(2 + a)</em>
<em>=> 3(5)(2 + 5)</em>
<em>=> 15(7)</em>
<em>=></em> <u><em>105</em></u>
Answer: 40.87
Step-by-step explanation:
Answer:
x^3 + 9x^3 -6x -54
Step-by-step explanation:
first step is you're going to simplify the problem.
using the (a-b)(a+b)=a^2-b^2 formula combine the last two grouped numbers to equal (x+9)(x^2-6)
multiply the parenthesis to get x^3 - 6x + 9x^2 -54
reorder the terms and then you get your answer! x^3 + 9x^3 -6x -54
does this make sense? :)
Factor the numerator and the denominator and cancel the common factors.
2/1/3= 6