# Add or subtract the following polynomials., 1. (6x\xb3-4)+(-2x\xb3 +9), 2. (x+5) + (2x + 4x\xb2 – 2), 3. (x\xb2+x)+(x\xb2-11), 4. (8x-4x\xb2)+(3x – 9x\xb2), 5. (2x\xb2 + 6x + 4) + (5x\xb2-7), 6. (3x\xb2-x+11)-(x\xb2+2x+8)

Add or subtract the following polynomials.

1. (6x³-4)+(-2x³ +9)

2. (x+5) + (2x + 4x² – 2)

3. (x²+x)+(x²-11)

4. (8x-4x²)+(3x – 9x²)

5. (2x² + 6x + 4) + (5x²-7)

6. (3x²-x+11)-(x²+2x+8)​

## ✒️Expressions  → 1.) → 2.) → 3.) → 4.) → 5.) → 6.)   ### Step1↓

Remove unnecessary parentheses When there is a + in front of expression in parentheses, the expression remains the same ### Step2↓

Collect like terms Calculate the sum ### Step1↓

Remove unnecessary parentheses When there is a + in front of expression in parentheses, the expression remains the same ### Step2↓

Collect like terms Subtract the numbers ### Step3↓

Use the commutative property to reorder the terms ### Step1↓

Remove unnecessary parentheses When there is a + in front of expression in parentheses, the expression remains the same ### Step2↓

Collect like terms ### Step1↓

Remove unnecessary parentheses When there is a + in front of expression in parentheses, the expression remains the same ### Step2↓

Collect like terms Collect like terms ### Step1↓

Remove unnecessary parentheses When there is a + in front of expression in parentheses, the expression remains the same ### Step2↓

Collect like terms Calculate the difference ### Step1↓

Remove unnecessary parentheses When there is a – in front of an expression in parentheses, change the sign of each term of the expression and remove the parentheses ### Step2↓

Collect like terms Collect like terms Subtract the numbers  ^_^

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