Simplify the expression

-88

Step-by-step explanation:

If a=2, we can say that - would be -4.

Secondly, if a=2 and b=-6 we can assume that 4ab would become -48.

Finally, if b=-6 we can say that - would become -36.

Adding all of those up gives you -88, your answer.

-88

Step-by-step explanation:

Replace the variable a with 2

↓↓↓

Replace the variable b with −6

Raise 2 to the power of 2

Multiply −1 by 4

Multiply 4 by 2

Multiply 8 by −6

Raise −6 to the power of 2

Multiply −1 by 36

basic subtraction follows this

and we are left with an answer of -88

each side has a different length.  

step-by-step explanation:

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3