I need help with 14 and 15
2 answers:
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Answer:
» substitute y in eqn(a) with y in eqn(b)
» Find y in eqn(b)
Answer:
Step-by-step explanation:
The objective is to combine the terms to make one radical, so therefore we know that we will have to take a out of the second radical
.
If we divide 180 by 5, we will get 36, so now we have
×
can be simplied into just 6.
So now the expression becomes
Then we can further simplify by moving the into the radical to get two common terms with
.
, so we now have
So then we can combine the two radicals to get the expression to
We now see that we have two terms with a common radical, and coefficients of -1, and 48.
That allows us to simplify further to
Here, we can take out , which is
, and get the final simplied form to be
Hope this helped.