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velikii [3]
3 years ago
14

(2x+ 2) +(3 - 5x) 4.) (3x3 - 4x4) +(2x + 5x4)​

Mathematics
1 answer:
HACTEHA [7]3 years ago
3 0

Answer:

1. \boxed{   \bold{ \sf{ - 3x + 5}}}

2. \boxed{ \bold{ \sf{ {x}^{4}  + 3 {x}^{3}  + 2x}}}

Step-by-step explanation:

1. \sf{(2x + 2) + (3 - 5x)}

When there is a ( + ) in front of expression in parentheses , the expression remains the same.

⇒\sf{2x + 2 + 3 - 5x}

Collect like terms

⇒\sf{ - 3x + 2 + 3}

Add the numbers

⇒\sf{ - 3x + 5}

2. \sf{( {3x}^{3}  - 4 {x}^{4} ) + (2x + 5 {x}^{4}) }

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} }

Collect like terms

⇒\sf{ {x}^{4}  + 3 {x}^{3}  + 2x}

Hope I helped!

Best regards!!

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