Question

Please answer the question:- (1.2x+4)(1.2x+4)​

Answer 1

Answer:

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Step-by-step explanation:

(1.2x+4)(1.2x+4)

(1.2x+4)2

We know that (a+b)^2 = a^2 + b^2  + 2ab

Here a = 1.2x and b = 4

(a+b)^2 = a^2 + b^2  + 2ab

(1.2x+4)^2 = (1.2x)^2 + (4)^2  + 2(1.2x)(4)

(1.2x+4)^2 = 1.44x^2 + 16 + 9.6x

(1.2x+4)^2 = 1.44x^2 + 9.6x + 16

Answer 2

$(1.2x + 4)(1.2x + 4) \\ {(1.2 x+ 4)}^{2} \\ {(1.2x)}^{2} + {4}^{2} + 2 \times 1.2x \times 4 \\ {1.44x}^{2} + 16 + 9.6x$