Practice problem
Is x2+6x+6x^2+ 6x + 6x2+6x+6, the expression on the left, a perfect square?
No, x2x^2x2 should be 6x26x^26x2
Yes
No, 6x6x6x should be 3x3x3x
No, 666 should be 999
Type a concept, like “slope” or “photosynthesis”.