Please help!!! !!!!!!!

Mathematics

2 answers:

Pani-rosa [81]3 years ago

8 0

Answer:

x= -7

Step-by-step explanation:

-2+5(6x-5)= -237

multiply to get rid of the parentheses

-2+30x-25= -237

simplify

30x-27= -237

add 27 to both sides

30x= -210

divide both sides by 30

x= -7

Hope this helps! (;

AfilCa [17]3 years ago

4 0

Answer:

-2+6x

Step-by-step explanation:

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Step-by-step explanation:

This is a product of complex numbers, so we have in mind not only the general rules for multiplying binomials, but also the properties associated with the powers of the imaginary unit "i", in particular $i^2=-1$

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$(-36-48\,i)\,(-8-8\.i)=(-36)\.(-8)+(-36)(-8\,i)+(-48\,i)\,(-8)+(-48\,i)(-8\,i)=\\=288+288\,i+384\,i+384\,i^2=288+288\,i+384\,i+384\,(-1)=\\=288-384+288\,i+384\,i=-96+672\,i$