1. Combine like terms (simplify)
4x – 3 + 2 – 2x + 2(3x - 6) =

2. Combine like terms (Simplify
9(r –s) + 5(2r – 2s) =

3. Combine like terms (Simplify)
4(8m – 7n) + 6(3n – 4m) =

4. Put back into factored form:
144t - 36

5. Put back into factored form:
8x-12

pLeAsE hElp

1. 8x - 13

2. 19r - 19s

3. 8m - 10

4. 36(4t - 1)

5. 4(2x - 3)

Step-by-step explanation:

For the first three it’s pretty basic, just follow PEMDAS

for the last two, just find the largest number that divides into both of them and take it out

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!