Question

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Answer 1

E + F = 2c² + 5c + 4

Explanation:

`E = 6c^2 - 2c - 1 \\\\F = -4c^2 + 7c +5\\\\E + F = (6c^2 - 2 c -1) + ( -4c^2 + 7c +5)`

`=(6c^2 -4c^2) +(-2c + 7c) + (-1 + 5)`
`[\ arranging \ terms\ ]`

`= 2c^2 + 5c + 4`

Answer 2

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Let's Solve it!

Given that:

`\quad\quad\quad\quad\tt{E = 6 {c}^(2) - 2c - 1}`

`\quad\quad\quad\quad\tt{ F = - 4 {c}^(2) + 7c + 5}`

Formula:

`\quad\quad\quad\quad\tt{E + F = ?}`

Solution:

`\quad\quad\quad\tt{(6 {c}^(2) - 2c - 1) + ( - 4 {c}^(2) + 7c + 5)}`

Step by step:

`\quad\quad\quad\quad\tt{ ⟶(6 {c}^(2) ) + ( - 4 {c}^(2)) = \boxed{ \pink{2 {c}^(2) }}}`

`\quad\quad\quad\quad\tt{ ⟶ ( - 2c) + ( 7c) = \boxed{ \pink{5c }}}`

`\quad\quad\quad\quad\tt{ ⟶ ( - 1) + ( 5) = \boxed{ \pink{4 }}}`

Now, it will look like this:

`\quad\quad\quad\quad\tt{E + F =2 {c}^(2) + 5c + 4 }`

So, E + F is equal to:

`\quad\quad\quad\quad\tt{\boxed{ \boxed{ \color{magenta}{ 2 {c}^(2) + 5c + 4 }}}}`

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✍︎ C.Rose❀