(7)^2-4(5)(-6)=
49+120=169 is the answer
Answer:
7x-20=2x-3(3x+2)
We move all terms to the left:
7x-20-(2x-3(3x+2))=0
We calculate terms in parentheses: -(2x-3(3x+2)), so:
2x-3(3x+2)
We multiply parentheses
2x-9x-6
We add all the numbers together, and all the variables
-7x-6
Back to the equation:
-(-7x-6)
We get rid of parentheses
7x+7x+6-20=0
We add all the numbers together, and all the variables
14x-14=0
We move all terms containing x to the left, all other terms to the right
14x=14
x=14/14
x=1
Step-by-step explanation:
The purpose of solving an algebraic expression in an equation is to find the unknown variable. When two expressions are equated, they form an equation and therefore, it becomes easier to solve for the unknown terms. To solve an equation, place the variables on one side and the constants on the other side.
Sure hope this helps
Answer:
11
Step-by-step explanation:
11+5=16
16/-16=-1
Divide your shape into two different shapes. a cube and a rectangular prism.
the cube has the measurements of 20*20*20 giving it a volume of 8000 inches^3
the rectangular prism has the measurements of 40*30*20 giving it a volume of 24000 inches^3
now add them together to get 32,000 inches^3 as your answer
