Practice problem
(7x+2)2=(7x+2)^2=(7x+2)2=
49x2−14x+449x^2-14x+449x2−14x+4
49x2+28x+449x^2+28x+449x2+28x+4
49x2+28x−449x^2+28x-449x2+28x−4
49x2−14x−449x^2-14x-449x2−14x−4
Type a concept, like “slope” or “photosynthesis”.
