Q3 Add 3a²+ 4a, 5a²-3a, 2a²-4a = 10²-3a.
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Step-by-step explanation:
3a^2+4a+5a^2-3a+2a^2-4a=10^2-3a
10a^2-3a=10^2-3a
10a^2=100
a^2=10 is the answer
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