EM-179

Expansion and algebraic identities

E Math · Secondary 3 · Easy · Expansion and algebraic identities

Simplify

7b^2-(3b-2)^2

.

$-2b^2+12b-4$
$16b^2-4$
$2b^2+12b-4$
$7b^2+9b^2-12b+4$

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