Step-by-step explanation:
1)a^2-64
a^2-8^2
(a+8)(a-8)
2)20a^2-45b^2
5(4a^2-9b^2)
5(2a+3b)(2a-3b)
3)32x^2y^2-8
8(4x^2y^2-1)
8(2xy+)(2xy-1)
4)(x-y)^2-z^2
(x-y+z)(x-y-z)
5)49x^2-1
(7x+1)(7x-1)
Answer:
666600000000000000000000000
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Answers & Comments
Step-by-step explanation:
1)a^2-64
a^2-8^2
(a+8)(a-8)
2)20a^2-45b^2
5(4a^2-9b^2)
5(2a+3b)(2a-3b)
3)32x^2y^2-8
8(4x^2y^2-1)
8(2xy+)(2xy-1)
4)(x-y)^2-z^2
(x-y+z)(x-y-z)
5)49x^2-1
(7x+1)(7x-1)
Answer:
666600000000000000000000000