x is less than or equal to -18
Answer:
1. ![\boxed{ \bold{ \sf{ - 3x + 5}}}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%20%20%20%5Cbold%7B%20%5Csf%7B%20-%203x%20%2B%205%7D%7D%7D)
2. ![\boxed{ \bold{ \sf{ {x}^{4} + 3 {x}^{3} + 2x}}}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%20%5Cbold%7B%20%5Csf%7B%20%7Bx%7D%5E%7B4%7D%20%20%2B%203%20%7Bx%7D%5E%7B3%7D%20%20%2B%202x%7D%7D%7D)
Step-by-step explanation:
1. ![\sf{(2x + 2) + (3 - 5x)}](https://tex.z-dn.net/?f=%20%5Csf%7B%282x%20%2B%202%29%20%2B%20%283%20-%205x%29%7D)
When there is a ( + ) in front of expression in parentheses , the expression remains the same.
⇒![\sf{2x + 2 + 3 - 5x}](https://tex.z-dn.net/?f=%20%5Csf%7B2x%20%2B%202%20%2B%203%20-%205x%7D)
Collect like terms
⇒![\sf{ - 3x + 2 + 3}](https://tex.z-dn.net/?f=%20%5Csf%7B%20-%203x%20%2B%202%20%2B%203%7D)
Add the numbers
⇒![\sf{ - 3x + 5}](https://tex.z-dn.net/?f=%20%5Csf%7B%20-%203x%20%2B%205%7D)
2. ![\sf{( {3x}^{3} - 4 {x}^{4} ) + (2x + 5 {x}^{4}) }](https://tex.z-dn.net/?f=%20%5Csf%7B%28%20%7B3x%7D%5E%7B3%7D%20%20-%204%20%7Bx%7D%5E%7B4%7D%20%29%20%2B%20%282x%20%2B%205%20%7Bx%7D%5E%7B4%7D%29%20%7D)
When there is a ( + ) in front of expression in parantheses , the expression remains the same
⇒![\sf{3 {x}^{3} - 4 {x}^{4} + 2x + {5x}^{4} }](https://tex.z-dn.net/?f=%20%5Csf%7B3%20%7Bx%7D%5E%7B3%7D%20%20-%204%20%7Bx%7D%5E%7B4%7D%20%20%2B%202x%20%2B%20%20%7B5x%7D%5E%7B4%7D%20%7D)
Collect like terms
⇒![\sf{ {x}^{4} + 3 {x}^{3} + 2x}](https://tex.z-dn.net/?f=%20%5Csf%7B%20%7Bx%7D%5E%7B4%7D%20%20%2B%203%20%7Bx%7D%5E%7B3%7D%20%20%2B%202x%7D)
Hope I helped!
Best regards!!
Answer:
I think it is 18(A)
Step-by-step explanation:
I multiplied 8x3 then I did 6x3 and got 18