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Perform the indicated operation. Please show solution!
1. (5y − 3) + (4y + 2)
2. (x³ − 3) + (−x² + x + 3)
3. (a² + 12) − (4a² − a + 10)
4. (2x² − 1) + (−5x² + x + 9)
5. (x⁴ − x² − 2) + (x³ − 2x² + x + 2)


Sagot :

Answer:

1.9y-1

2.4-x²+x

3.-3a²+2+a

4.-3x²+8+x

5.4-x²-2+x³-2x²+x

Step-by-step explanation:

1.(5y- 3) + (4y+2)

step1:5y-3+4y+2

step2:(5y+4y) + (-3+2)

answer:9y-1

2.(x³-3)+(-x²+x+3)

step1:x°-x²+x+3

step2:1-x²+x+3

step3:(1+3)-x²+x

answer:4-x²+x

3.(a²+12)–(4a²-a+10)

step1:a²+12-4a²+a-10

step2:(a²-4a²)+(12-10)+a

answer:-3a²+2+a

4.(2x²-1)+(-5x²+x+9)

step1:2x²–1-5x²+x+9

step2:(2x²–5x²)+(-1+9)+x

answer:-3x²+8+x

5.(x4-x2-2)+(x3-2x²+x+2)

step1:(x4-x2-2)+(x(³+²)–2x²+x)

answer:4-x²-2+x³-2x²+x

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