Question 318987
1)Factor: 36x^2-z^2 = (6x+z)(6x-z)
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2) w^2+6w+9 =(w+3)(w+3)
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3) factor completely: 4x^3-10x^2-24x
=2x(2x^2-5x-12)
=2x(2x^2-8x+3x-12)
=2x((2x(x-4)+3(x-4))
=2x(2x-4)(2x+3)
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4) 2x^2+3xy-20y^2
=2x^2+8xy-5xy-20y^2
=2x(x+4y)-5y(x+4y)
=(x+4y)(2x-5y)