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3 years ago

Which expression is equivalent to this polynomial expression?

1 answer:

5 0

Answer:

(D) 8x^2y^2 - 15x^2y + xy^2 + 5y

Explanation:

Step one : open brackets
Step two: solve

#note
If there is a minus sign outside the bracket, all terms inside are multiplied by -1 when the bracket is opened.

Answered by GAUTHMATH

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Can someone help me here is the picture

S_A_V [24]

Answer:

You did not include a picture? Please include a picture so i can try to help you.

Step-by-step explanation:

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3 years ago

Ebony’s bank balance first reached $400 on Day 4. The last day her balance was $400 was Day 8.

Tema [17]

Answer: Answer:Step-by-step explanation:a) On day 4, her balance = $400on day 5, her balance = $0on day 6, her balance = $400on day 7, her balance = $0on day 8, her balance = $400From the above illustration, Ebony withdraws all the money and deposits the same amount, each every other days.c) I do not think so, perhaps, she must have been doing that previously, between day 4 and day 8, but have changed her way of withdrawals and savings between day 8 and day 12.

Step-by-step explanation:

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2 years ago

What is a equation that has a zero of -2 with a multiplicity of 3, a zero of 1 with a multiplicity of 1, degree of 4, and rises

zloy xaker [14]

Answer:

x^4+8x^3+18x-27=0

Step-by-step explanation:

In a equation of the form

$(x-a)^n(x-b)^m=0$

you have roots in x=a and x=b, and multiplicity of n and m respectively.

Hence, the equation is

$(x-(-2))^3(x-1)=0\\(x+2)^3(x-1)=0\\$

by expanding the factors you have

$(x^3+3x^2(3)+3x(3)^2+(3)^3)(x-1)=0\\(x^3+9x^2+27x+27)(x-1)=0\\x^4+9x^3+27x^2+27x-x^3-9x^2-27x-27=0\\x^4+8x^3+18x^2-27=0$

HOPE THIS HELPS!!

3 0

3 years ago

108 = -2(-5 - 7b) What does b equal?

mario62 [17]

Answer:

b = 7

Step-by-step explanation:

108 = -2(-5 - 7b)

Distribute -2 to the terms inside the parenthesis:

108 = 10 + 14b

Subtract 10 from both sides of the equation to isolate 14b:

108 - 10 = 10 + 14b - 10

98 = 14b

Divide 14 on both sides of the equation to solve for b:

$\frac{98}{14} = \frac{14b}{14}$

7 = b

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3 years ago

Find the value of x

Hitman42 [59]

Answer:

10 i think

Step-by-step explanation:

6 0

3 years ago