(3.2)2 – (1.8)2 equals

(3.2)2 – (1.8)2 equals
  • A.
    7.0
  • B.
    2.56
  • C.
    13.48
  • D.
    2.0
  • E.
    0.07
Correct Answer: Option A
Explanation

(3.2)2 – (1.8)2 = (3.2 + 1.8)(3.2 – 1.8)
= 5 x 1.4
= 7

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