Math Problem Statement
ข้อใดถูกต้อง
ก. (-4x)(x - 2y) = 4x2 - 8y
ข. -3xy(x - y) = 3xy2 - 3x2y
ค. -2x(x2 - y) = -2x3 + 2xy
ง. -5x(x - 1) = -5x2 - 35x
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Polynomial Expansion
Distributive Property
Formulas
a(b + c) = ab + ac
Distributive property of multiplication over addition
Theorems
Distributive Law
Suitable Grade Level
Grades 7-9
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