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Question
3a3 x-5a2 b2x5ab at a=1,b=2
Subject
Math
Topic
Algebra
Level
Junior High
Grade
7
Answer
-600
Steps
3a^3 = 3x(1)^3 =3
-5a^2b^2= -5×(1)^2×(2)^2=-5×4=-20
5ab=5×1×2=10
Expression=3×(-20)×10
=-600
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