Mathematical Reasoning第 62 / 120 题
Expand the expression 4(2x + 3).
a.8x + 3
b.8x + 12
c.6x + 7
d.8x + 7
解析
Use the distributive property to multiply 4 by each term: 4 × 2x = 8x and 4 × 3 = 12. The result is 8x + 12. Distribution multiplies the outside factor across everything inside the parentheses.
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