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4 years ago

Solve the following equations: (6x–5)–7(3x+10)=0

Mathematics

2 answers:

satela [25.4K]4 years ago

7 0

Answer:

-15

Step-by-step explanation:

6x-5-21x-70=0

-15x=0+5+70

-15x=75

x=75/-15

brilliants [131]4 years ago

3 0

Answer:

X= -5

Step-by-step explanation:

PEMDAS

(6x-5)-7(3x+10)=0

(6x-5)-21x-70=0

-15x-75=0

add 75 to 75 on the left add 75 to 0 on the right

-15x=75

divide both sides by -15

X= -5

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3 years ago

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3 years ago

Multiply (x-1)(x³+4x²+4x-1) and combine like terms. Explain how you reached your answer.

Hitman42 [59]

Answer:

x⁴+3x³ -5x +1

Step-by-step explanation:

To multiply this we are going to <u>multiply each term of the binomial by each term of the polynomial.</u>

$(x-1)(x^{3}+4x^{2} +4x-1)\\=x^4+4x^3+4x^2-x -x^3-4x^2-4x+1$

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Thus, the answer is x⁴+3x³ -5x +1

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3 years ago