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ZanzabumX [31]
2 years ago
11

5. 4i(-2 - 4i)

Mathematics
1 answer:
Wewaii [24]2 years ago
4 0

Answer:

4i( - 2 - 4i) =  - 8i + 16 \\  \\ 5i.i.( - 2i) = 10i \\  \\  (- 5 - i)(1 + i) =  -5-5i-i+1\\=-4-6i

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Can someone please tell me the answer on this.
marishachu [46]

Answer: x = 31

Step-By-Step:

<u>To Find x:</u>

<u />\left(2x+20\right)+\left(x+10\right)+\left(2x-5\right)=180 (Angle Sum Property Of Triangles)

(Remove the brackets)

<u />2x+20+x+10+2x-5=18<u />

(Group Accordingly)

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= 5x+20+10-5=180

= 5x\:+\:25 =180

= 5x= 180 - 25

= 5x = 155

= x=\frac{155}{5}

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<u>Therefore</u> x = 31

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2 years ago
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