3 years ago

BRAINLIEST!!!

Mathematics

2 answers:

daser333 [38]3 years ago

6 0

(6 + 5i)(10- 15i)
60- 90i +50i - 75i2
60- 40i -75i2
Answer is C

sineoko [7]3 years ago

3 0

Answer:

c) 60-40i-75i^2

Step-by-step explanation:

first you multiply out the brackets then collect like terms to get the answer

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MariettaO [177]

First let us find

$(q\mathrm{}p)(x)$ $\begin{gathered} q(p(x))=q(-2x+1) \\ =-(-2x+1)^2 \\ So\text{ } \\ (q\mathrm{}p)(5)=-(-2\times5+1)^2 \\ =-(9)^2 \\ =-81 \end{gathered}$

Now let;s solve the second part

$\begin{gathered} (p\mathrm{}q)(x)=p(q(x)) \\ =p(-x^2) \\ =-2(-x^2)+1 \\ =2x^2+1 \\ So\text{ (p.q)(5) will be } \\ (p\mathrm{}q)(5)=2(5)^2+1 \\ =51 \end{gathered}$

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1 year ago

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Step-by-step explanation:

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3 years ago

Three times the difference of a number and 2

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