Question

Help me with this please there are 4 screenshots no wrong answers

Answer 1

Answers below ↓↓↓

Explanation:

`\tt 1.\; (k^2-4k+7)+(k^2+9k-3)`

`\tt k^2-4k+7+k^2+9k-3`

`\boxed{\tt 2k^2+5k+4}`

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`\tt 2.\;\left(8-p^2+5p\right)+\left(p^2-15-4p\right)`

`\tt 8-p^2+5p+p^2-15-4p`

`\tt 5p-4p+8-15`

`\boxed{\tt p-7}`

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`\tt 3.\;\left(5r-2s\right)-\left(9r-11s\right)`

`\tt 5r-2s-9r+11s`

`\boxed{\tt -4r+9s}`

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`\tt 4.\; \left(7v-v^2+14\right)-\left(15+8v+v^2\right)`

`\tt 7v-v^2+14-15-8v-v^2`

`\tt -v^2-v^2+7v-8v+14-15`

`\boxed{\tt -2v^2-v-1}`

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Hope this helps!