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ivann1987 [24]
3 years ago
10

Subtract. (5r2+5r+9)–(3r+2)

Mathematics
1 answer:
natulia [17]3 years ago
4 0
The answer is 5r2-2r+7
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{\color{red}{\huge{\underbrace{\overbrace{\mathfrak{\:\:\:\:\:\:\:꧁"Answer"꧂\:\:\: }}}}}}

<u>Because ∆XZW and WYZ is the same height and </u>

<u>Because ∆XZW and WYZ is the same height and the are of ∆WXZ to the the WYZ </u>

so \:(  \frac{1}{2}xw \times h)( \frac{1}{2} w)=7:2

<u>Because xy=21</u>

so \:  WY=2 \frac{1}{2}(7 + 2x2) \\  = 21 \frac{1}{2}p \times 2 \\ =\small\color{blue}{{{\boxed{\tt\red{} \:\:\:\:\:\:\:\:\:\: WY=\frac{14}{3}\:\:\:\: }}}}

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