Question

Find the product
1.) (x-3) (y+5)
2.) (y+9)(y-9)
3.) (y-7))^2
4.) (a+b-c)^2
5.) (y+4)^3

Answer 1

Answer:

1. xy+5x-3y-15

2. y²-81

3. y²+48-14y

4. a²+b²+c²+2ab-2bc-2ca

5. y³+64+12y²+48y

Step-by-step explanation:

1. (x-3)(y+5)

= xy+5x-3y-15

2. (y+9)(y-9)

= (y²-9²)

= y²-81

3. (y-7)²

= y²+48-14y

4. (a+b-c)²

= a²+b²+c²+2ab-2bc-2ca

5. (y+4)³

= y³+64+12y²+48y

Hope it helps you...

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