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.

Answers: 3

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