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xeze [42]
3 years ago
7

E=6c^2−2c−1 F=−4c^2+7c+5 ​ E+F=

Mathematics
1 answer:
IRINA_888 [86]3 years ago
4 0

The answer of given equation is 2c^{2} + 5c +4

Step-by-step explanation:

By putting the given values of E and F we get,

E + F

=( 6c^{2}-2c-1) + (-4c^{2}+7c+5)

Here we will take the coefficient of same variable together

=(6c^{2}-4c^{2}) +( -2c +7c) +( -1+5)

=2c^{2} + 5c +4

Hope this helps you.

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Find four consecutive integers whose sum is 234.
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57, 58, 59, 60

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There are 24 boys and 16 grils on a playground. What is the ratio of boys tototal number of children on the playground
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1st. (2 root 2 + root 3 ) ( 2 root 3 - root 2)
satela [25.4K]

Answer:

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3rd: 24*root2 - 20*root6 + 15*root3 - 18

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5th: 13*root10 - 42

Step-by-step explanation:

To simplify these expressions we need to use the distributive property:

(a + b) * (c + d) = ac + ad + bc + bd

So simplifying each expression, we have:

1st.

(2 root 2 + root 3 ) ( 2 root 3 - root 2)

= 4*root6 - 2*2 + 2*3 - root6

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2nd.

(root 5 + 2 root 10) (3 root 5 + root 10)

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3rd.

(4 root 6 - 3 root 3) (2 root 3 - 5)

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4rd.

(6 root 3 - 5 root 2 ) (2 root 2 - root 3)

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5th.

(root 10 - 3 ) ( 4 - 3 root 10)

= 4*root10 - 3*10 - 12 + 9*root10

= 13*root10 - 30 - 12

= 13*root10 - 42

8 0
2 years ago
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