Question

please help me i have maths exam please ​

Answer 1

Answer:

a⁰=1 this is the answer of your question

Answer 2

Step-by-step explanation:

6. (-7),b^2,49

$7. {x}^{2} - 4$

8. 1

9. 5

10. 12(x+3)

11. 700

$12. 3xz - 3 {x}^{2} - 3xy + 3yz - 3 {y}^{2} - 3xy = 3 {y}^{2} - 3 {x}^{2} - 6xy + 3xz + 3yz$