2 years ago

I need help plz! I am so confuse, I would really appreciate it if someone knows the answers!

Mathematics

1 answer:

aalyn [17]2 years ago

3 0

What's the question?

Step-by-step explanation:

I will answer it

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R is positive can someone simplify it ik it may actually be simple lol

maxonik [38]

Answer:

can you explain the question better

6 0

3 years ago

FG=8x+4. If GH=4x+8 and FH=15x-9, then what does FH=?

Mashcka [7]

So 8x+4+4x+8=15x-9

Combine like terms.

12x+12=15x-9

Add 9 to both sides.

12x+21=15x

Subtract 12 from both sides.

21=3x

Divide both sides by 3.

x=7

Now plug in 7 for x in 8x+4.

8(7)+4

56+4

=60

4 0

3 years ago

Simplify the following expression completely, where x is greater than or equal too 0.

Dennis_Churaev [7]

First you want the numbers under the radical to be the same so you can combine like terms.

$x \sqrt{5xy^4} =x \sqrt{5x*^4y} = xy^2 \sqrt{5x}$
$\sqrt{405x^3y^4} = \sqrt{5x*81x^2y^4} =9xy^2 \sqrt{5x}$
$\sqrt{80x^3y^4} = \sqrt{5x*16x^2y^4} = 4xy^2 \sqrt{5x}$

Now add together to get $14xy^2 \sqrt{5x}$