Question

1)Find (0.3x²+ 1.2 y) ² using Identity- I. solve it fast
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Answer 1

Answer:

(0.3x²)² + (1.2y)² + 2× 0.3x × 1.2y

0.9x⁴ + 1.44y² + 0.78xy

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Answer 2

Answer:

0.09x4 + 1.44y2 + 0.72x2y

Step-by-step explanation:

(0.3x2 + 1.2y)2

using identity (a+b)2

a = 0.3x2

b = 1.2y

(o.3x2)2 + 1.2y2 + 2(0.3x2*1.24)

0.09x4+1.44y2 + 2(0.36x2y)

0.09x4 + 1.44 y2 + 0.72x2y