5(x+8) = 5 × x + 5 × 8 = 5x + 40
x(y-z) = x × y + x × (-z) = xy - xz
4(5-3x) = 4 × 5 + 4 × (-3x) = 20 - 12x
3a(2b+7) = 3a × 2b + 3a × 7 = 6ab + 21a
2x(6+3x) = 2x × 6 + 2x × 3x = 12x + 6x²
-4b(-2b+7) = (-4b) × (-2b) - 2b × 7 = 8b² - 28b
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5(x+8) = 5 × x + 5 × 8 = 5x + 40
x(y-z) = x × y + x × (-z) = xy - xz
4(5-3x) = 4 × 5 + 4 × (-3x) = 20 - 12x
3a(2b+7) = 3a × 2b + 3a × 7 = 6ab + 21a
2x(6+3x) = 2x × 6 + 2x × 3x = 12x + 6x²
-4b(-2b+7) = (-4b) × (-2b) - 2b × 7 = 8b² - 28b