Question

Expand (Z-8)*(Z+7)

Sorry for asking this question in the morning please answer my question.​

Answer 1

Answer:

(z-8)(z+7)

z(z+7) -8(z+7)

${z}^{2} + 7z - 8z - 56 \\ {z}^{2} - z - 56$

Answer 2

The expandation of $(Z-8)(Z+7)$ is $Z^{2}-Z-56.$

Step-by-step explanation:

We have,

$(Z-8)(Z+7)$

To the expand $(Z-8)(Z+7)$ = ?

∴$(Z-8)(Z+7)$

$=Z(Z+7)-8(Z+7)$

$=Z^{2}+7Z -8Z-56$

$=Z^{2}-Z-56$

Hence, the expandation of$(Z-8)(Z+7)$ is $Z^{2}-Z-56.$