Plz Find the ans Chapter Algebraic Expressions Class 8
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Answer:
(1.5.x2 + 1.2y)2-(1.5x2 - 1.2y)2. = 7.2x²y
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Answer:
Step-by-step explanation:
i )
=( 3x + 2y )² { (a+b)²=(a)²+(b)²+2ab }
=(3x)² + (2y)² + 2(3x)(2y)
=9x²+4y²+12xy
ii)
49² = 7
iii)
(0.9-0.5)²
=(0.9)²+(0.5)²-2(0.9)(0.5)
=0.81+0.25-0.9
=1.06-0.9
=0.16
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