Answer:
1.5326
Step-by-step explanation:
there is no more simplification it can only be calculated by a calculator
Answer:
63
Step-by-step explanation:
90+13x+1+28x+7=180
98+41x=180
41x=82
x=2
Plugging in the value of x, we get:
28x+7=28(2)+7=56+7=63
Answer:
Given equation: 
when we complete the square , we take half of the value of 8 , then square it, and added to the left sides, we get;

∵8 is the value 
Notice that, we add this both sides so that it maintains the equality.
then;

[
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Simplify:

The number must be added to complete the square is, 
It is 7 opposite is different and absolute value would be 7 also it is always positive