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Ito | Mathematics
IGCSE
IB Math AA SL
IB Math AA HL
Challenges
(1D) Perfect squares expansion
Expand and simplify.
$\left(-2y+9\right)^{2}$
Check
$\left(7y+2\right)^{2}$
Check
$\left(-5-2y\right)^{2}$
Check
$\left(9x-5\right)^{2}$
Check