Question

Factorise
1)- x^2+z^2-2xz

2)- 64x^2-81y^2

please do not give any useless answer ​

Answer 1

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• Factorise the polynomials.

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${x}^{2} + {z}^{2} - 2xz$

$= {(x)}^{2} + {(z)}^{2} - 2 \times x \times z$

$= {(x - z)}^{2}$

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$64 {x}^{2} - 81 {y}^{2}$

$= {(8x)}^{2} - {(9y)}^{2}$

$= (8x + 9y)(8x - 9y)$

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• ${(x - z)}^{2}$
• $(8x + 9y)(8x - 9y)$

Answer 2

Answer:

hey hope the above pic helps you .