Lucia finds that (3x²+3x+5)+(7x²-9x+8)=10x²-12x+13. what error did lucia make?
a)she fo...
Mathematics, 25.01.2020 20:31, toddjordan1928
Lucia finds that (3x²+3x+5)+(7x²-9x+8)=10x²-12x+13. what error did lucia make?
a)she found the difference instead of the sum.
b)she combined the terms 3x² and 7x² incorrectly.
c)she combined the terms 3x and –9x incorrectly.
d)she did not combine all like terms.
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