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Plz plz plz plz plz plz plz help help help me plz help me I’m begging you plz help me plz

Plz plz plz plz plz plz plz help help help me plz help me I’m begging you plz help-example-1
User DitherSky
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2 Answers

4 votes

Answer:

Step-by-step explanation: This question is most likely a guess and check question!

GUESS AND CHECK:

A) x+x+x and x³

Exponents are usually multiplication put the operation here is addition so it's not A.

B) 14x+10-2x and 16x+10

For 14x+10-2x, 14x and 2x can be combined so when they are it would be 12x. Then you add 10 which is 12x+10 which is not equivalent to 16x+10

C) 12x+16x and 4(3x+4x)

12x+16x is 28x. For 4(3x+4x) , you have to distribute which would become 12x+16x which is also 28x. Therefore, 12x+16x and 4(3x+4x) are equivalent.

Answer: C

PLZ: Rate this 5 stars and I hope this was helpful

User Kennebec
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3 votes

C.

A doesn't work because x + x + x = 3x, not x^3.

B doesn't work because 14x + 10 - 2x has like terms, 14x and -2x can be combined, bit when you do so you get 14x - 2x, or 12x + 10. (So not 16x + 10)

D doesn't work because 12x^2 + 5x + 10 doesn't simplify; it can only be factored, and you cannot combine 12x^2 and 5x because their variables have different powers.

C, however, works fine. All they did is factor out a 3; if you distribute that 3 again, you get 12x + 16x back, so the two are equal.

User Repeat
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