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3 years ago

Write the equivalent expression (5x-3x2)-(5x-2)×(10x+7x2)in standard form:

Mathematics

1 answer:

Papessa [141]3 years ago

3 0

Answer:

-35x³ - 39x² + 25x

Step-by-step explanation:

Step 1: Write out expression

(5x - 3x²) - (5x - 2)(10x + 7x²)

Step 2: Distribute/Expand

5x - 3x² - (50x² + 35x³ - 20x - 14x²)

Step 3: Combine like terms

5x - 3x² - (36x² + 35x³ - 20x)

Step 4: Distribute negative

5x - 3x² - 36x² - 35x³ + 20x

Step 5: Combine like terms

-35x³ - 39x² + 25x

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A washer and dryer cost $803 combind the washer costs $47 less then the dryer whats is the cost of the dryer

Naddik [55]

Answer:

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x = washer

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Scrat [10]

Given the function :

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$x=-3\rightarrow f(x)=\sqrt[]{-3+2}+1=\sqrt[]{-1}+1$

So, there is no value for f(x) at x = -3 (the function undefined because the square root of -1)

$\begin{gathered} x=-2\rightarrow f(x)=\sqrt[]{-2+2}+1=\sqrt[]{0}+1=0+1=1 \\ \\ x=-1\rightarrow f(x)=\sqrt[]{-1+2}+1=\sqrt[]{1}+1=1+1=2 \\ \\ x=2\rightarrow f(x)=\sqrt[]{2+2}+1=\sqrt[]{4}+1=2+1=3 \\ \\ x=7\rightarrow f(x)=\sqrt[]{7+2}+1=\sqrt[]{9}+1=3+1=4 \end{gathered}$

the graph of the function and the points will be as shown in the following image :

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1 year ago

15.25 ÷244= I need help solving this

tester [92]

When you divide these you get
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8 0

3 years ago

Write the equivalent expression (5x-3x2)-(5x-2)×(10x+7x2)in standard form:​

Write the equivalent expression (5x-3x2)-(5x-2)×(10x+7x2)in standard form: