Question

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

Algebraic Expressions and Identities​

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 correct answer is "z²-z-56".

Step-by-step explanation:

$The \ given \ binomials \ are:\\\\(z-8) \ (z+7)\\\\On \ multiplying \ both \ binomials,we \ get\\\\=z(z+7)-8(z+7)\\\\=z^2+7z-8z-56\\\\=z^2-z-56$

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