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bezimeni [28]
3 years ago
6

What is [3.4(6x+2)+3]+4p-3x? PLS need help

Mathematics
1 answer:
inna [77]3 years ago
3 0
Step 1: simplify

[3.4 ( 6 x + 2 ) +3] + 4 p -3 x 

Pemdas!

 6x+2=8x

3.4+3=6.4

6.4+8x=14.4

14.4x+4p=18.4xp+3= 21.4xpx 

x=8

p=18.4

Other x = 21.4
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A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i what is the students mistakes
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Answer:

1. In the multiplication of the imaginary parts, the student forgot to square of i. OR

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The given expression is

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A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i.

Student's mistake can be either 1 or second:

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2. The student has only multiplied the real parts and the imaginary parts.

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Using distributive property, we get

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12+7i+10

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Therefore, the correct value of (4+5i)(3-2i) is 22+7i.

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