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1 of 8
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Lesson
Practice
Recognise linear equations
DIFFICULTY
intro
standard
challenge
exam
QUESTION TYPE
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Pick the squared equation
Classify a squared equation
Classify three plain and squared equations
NOW
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Question 1 of 8
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1 mark
Choose the equation classified as not linear
\[4r^2 + 3 = 7\]
\[5r + 4 = 9\]
\[2r + 6 = 6\]
\[3r + 1 = 7\]
CHECK
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