
<u>Let us assume that:</u>

We can also write it as:

Squaring both sides, we get:


By splitting the middle term:



<u>Therefore:</u>


<u>But x cannot be negative. </u>

Therefore, the value of the expression is 3.

Given:

We can also write it as:






This pattern will continue.

The answer to this question would be 39..here is why:
First you multiply 23 x 3..because multiplication or division always comes before addition or subtraction.
Second, you get the product from 23 x 3 which is 69..and you subtract 30 from that.
Last, after you do that you get an over all answer of 39..
Hope this helps!!
Answer: X = -24 Y = 66
Step-by-step explanation:
5(-6) = -30
X = 6 - 30 = -24
Y = 42 + 24 = 66