Expand (5x/4 + 3/4)^3

125x^3 + 27/ 64

Step-by-step explanation :

This can be done in man ways. But I recommend solving what is inside the brackets first.

So add 5x/4 and 3/4, which gives 5x+3/4

Now, rewrite the term with simplified brackets

(5x+3/4)^3

Now we have to cube 5x+3/4

5x+3/4^3 = 125x^3 + 27/64

Hope this helps

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step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

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step-by-step explanation: