Simplification Test 2

Question : 6 of 40

Marks: +1, -0

(32.05)^2 - (18.9)^2 - (11.9)^2 = x

Choose the most appropriate value of x in the following questions: (You are not expected to calculate the exact value)

Solution:

x=(32.05)^2 - (18.9)^2 - (11.9)^2

x = 1,027.20 - 357.21 - 141.61

x = 1,027.20 -498.82

x = 528.38 ≈ 530

x= 530

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