expand by using formula (1.5x -0.6y)2
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given - (1.5x - 0.6y )2
by using formula
( a-b)^2 = a^2 - 2ab + b^2
(1.5x - 0.6)^2 =
=1.5x^2 - 2 × 1.5x × 0.6y + 0.6^2
= 2.25x^2 - 1.8 xy + 0.36y^2
by using formula
( a-b)^2 = a^2 - 2ab + b^2
(1.5x - 0.6)^2 =
=1.5x^2 - 2 × 1.5x × 0.6y + 0.6^2
= 2.25x^2 - 1.8 xy + 0.36y^2
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