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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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3 years ago
Evaluate the expression using the distributive property 8(7+7)
MrRissso [65]

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5 0
3 years ago
Read 2 more answers
Can someone please help me??
Fantom [35]

Answer:

b=3, y=6

Step-by-step explanation:

Label the 2 equations:

2b +6y= 42 -----(1)

2b +4y= 30 -----(2)

(1) -(2):

(2b +6y) -(2b +4y)= 42 -30

2b +6y -2b -4y= 12

2y= 12

y= 12 ÷2 <em>(</em><em>÷</em><em>2</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

y= 6

Susbt. y=6 into (2):

2b +4(6)= 30

2b +24=30

2b= 30 -24 <em>(</em><em>-24</em><em> </em><em>on</em><em> </em><em>b</em><em>o</em><em>t</em><em>h</em><em> </em><em>sides</em><em>)</em>

2b= 6

b= 6 ÷2

b= 3

3 0
2 years ago
Read 2 more answers
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