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2 years ago

1. Write an expression using symbols:

Mathematics

1 answer:

ycow [4]2 years ago

6 0

Answer:

the sum of x and y=x+y

the product of 5 And y minus x is 5(y)-x

the difference between p and q is p-q

the sum of m and n divided by 3 is (m+n)÷3

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Answer:

B, 2,010

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What are all of the real roots of the following polynomial? f(x) x^4-24x^2-25

Greeley [361]

Answer:

x = ±5

Step-by-step explanation:

We are given the following polynomial function and we are to find all of its real roots:

$x^4-24x^2-25$

Let $y=x^2$ so we can now write it as:

$y^2-24y-25$

Factorizing it to get:

$(y^2+y)+(-25y-25)$

$y\left(y+1\right)-25\left(y+1\right)$

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Substitute back $y=x^2$ to get:

$\left ( x^2 + 1 \right ) \left ( x^2 - 25 \right )$

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First, you multiply 4 by 1. Then that's your answer, 4. I hope it helped!

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