Question

Simplify (7t^2+9)+(6t^2+8)
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Answer 1

Assignment:
`\bold{Simplify \ Equation: \ \left(7t^2+9\right)+\left(6t^2+8\right)}`

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Answer: ➣
`\boxed{\bold{13t^2+17}}`

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Explanation:
`\downarrow\downarrow\downarrow`

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➤ [ Step One ] Remove Parenthesis: (a) = a

`\bold{7t^2+9+6t^2+8}`

➤ [ Step Two ] Group Like Terms

`\bold{7t^2+6t^2+9+8}`

➤ [ Step Three ] Combine Similar Elements:
`\bold{7t^2+6t^2=13t^2}`

`\bold{13t^2+9+8}`

➤ [ Step Four ] Add Numbers:
`\bold{9+8=17}`

`\bold{13t^2+17}`

`\bold{\rightarrow Mordancy \leftarrow}`

Answer 2

13t^2 +17

Explanation:

It helps to regroup the terms so like terms are together. Then you can more easily see how to combine them.

(7t^2 +9) + (6t^2 +8) = 7t^2 + 9 + 6t^2 + 8

= 7t^2 + 6t^2 + 9 + 8

= t^2·(7 + 6) + (9 +8)

= 13t^2 +17