Can someone help me on my math

Mathematics

2 answers:

aivan3 [116]3 years ago

7 0

Answer:

Step-by-step explanation:

6x² - 4x + 2

Cannot do any more because there are no like terms. Sometimes it's confusing when you try to combine the 6x² with 4x, but you can't subtract numbers when one has an exponent and the other doesn't. Hope this helps!

malfutka [58]3 years ago

4 0

Answer:

6x^2 -4x+8

Step-by-step explanation:

6x^2 +5 - (4x-3)

Distribute the minus sign

6x^2 +5 -4x+3

Combine like terms

6x^2 -4x+8

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Can you please explain how to do this and give me the answer so next time I know how to do it. Square root with -15 in it and sq

Drupady [299]

Answer:

15i and 4i

Step-by-step explanation:

i is an imaginary number also shown as $\sqrt{-1}$ .

Since we have $\sqrt{-15}$ , thats 15* $\sqrt{-1}$ . Substitute $\sqrt{-1}$ for i and we get 15*i or 15i.

We do the same for $\sqrt{-4}$ . This is 4* $\sqrt{-1}$ or 4*i or 4i.

An easy way to do this is to take the negative inside the square root like $\sqrt{-6}$ , take the absolute value -6 absolute value=6 and times it by i. So now it becomes 6i