The simplified form of R(x) is
<h3>Simplifying an expression </h3>
From the question, we are to simplify the expression
From the given information,
and
Also,
∴
Factoring each of the quadratics
Simplifying
Hence, the simplified form of R(x) is
Learn more on Simplifying an expression here: brainly.com/question/1280754
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Answer:
20. 4n+5+8n-5=180(linear pair)
12n=180
n=15
21. 9x-6=8.5x+2(can be seen from image)
9x-8.5x=2+6
0.5x=8
x=8/0.5
x=80/5
x=16
22. 4z+3z+6=90°(Complementary)
7z+6=90°
7z=84°
z=12°
1) ?=102 degrees
2) x=132 degrees
3) y=69 degrees and x=96 degrees
i hope the photo helps show you each step
Answer:
If two expressions are equal to each other, and you add the same value to both sides of the equation, the equation will remain equal. When you solve an equation, you find the value of the variable that makes the equation true. In order to solve the equation, you isolate the variable.