Expand and simplify quadratic expressions (a+b)(c+d)

Front

Find the product of (-2x)·8x and (-3x)·(-10x). What is the sum?

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14x²

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Expand: 8x(-x-3)

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-8x² - 24x

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Expand: -5x(2-3x)

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-10x + 15x²

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Expand and simplify: c(3c+1) + 2c(c+3)

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5c² + 7c

Front

Expand and simplify: 6d(5d-4) - 2d(3d-2)

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24d² - 20d

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Expand: (x+3)(x+7)

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x² + 10x + 21

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Expand (4x-1)(3x-5)

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12x² - 23x + 5

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Expand: (3x - 2)(x + 3)

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3x² + 7x - 6

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Expand: (−x + 4)(x + 8)

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−x² − 4x + 32

Front

Expand and simplify: (x−3)(x−8)+(x−4)(2x+9)

Back

3x²−10x−12