Answer: 2*√18 + 3*√2 + √162 = 18*√2
Step-by-step explanation:
I guess that the equation is:
2*√18 + 3*√2 + √162
And we want to simplify it.
first 18 = 9*2
then we can write:
2*√18 = 2*√(9*2) = 2*3*√2 = 6*√2
and 162/9 = 18
then we can write:
√162 = √(9*18) = √9*√18 = 3√18
now we can use the previous step: √18 = 3*√2
and:
√162 = 3*(3*√2) = 9*√2
now we can write our equation as:
6√2 + 3√2 + 9√2 = (6 + 3 + 9)√2 = 18*√2
And now we can not simplify it further more, so here we end.
If you do 81 x 9 which equals 729. If you want to check, you do 729 divided by 9 and you get 81.
Answer:
Explanation:
Given 4x + 6y - 10x + 13y = 11
If (1, 1) is a solution, then substituting x = 1 and y = 1 into the left hand side of the equation gives 11.
Doing this, we have:
4(1) + 6(1) - 10(1) + 13(1)
= 4 + 6 - 10 + 13
= 13
Answer:
Step-by-step explanation:
