Question

(z+3)(z-7) please write the answer​

Answer 1

Answer:

(z+3)(z-7) = z(z-7) + 3(z-7)

= z² - 7z + 3z - 21

= z² - 4z - 21

Hope this helps

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Answer 2

Answer:

z(3-7)

Step-by-step explanation:

(z+3)(z-7)

z+3×z-7

z is common in both the equations

so,z(+3-7)