16(x-1)^2-9(x+2)^2

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16(x-1)^2-9(x+2)^216(x-1)^2-9(x+2)^216(x-1)^2-9(x+2)^216(x-1)²-9(x+2)²=(4(x-1)+3(x+2))(4(x

16(x-1)^2-9(x+2)^2
16(x-1)^2-9(x+2)^2

16(x-1)^2-9(x+2)^2
16(x-1)²-9(x+2)²=(4(x-1)+3(x+2))(4(x-1)-3(x+2)))
=(7x+2)(x-10)

=[4(x-1)]²-[3(x+2)]²
=(4x-4+3x+6)(4x-4-3x-6)
=(7x+2)(x-10)

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