Question
Download Solution PDFIf a + b = 11 and a - b = 5, then calculate the value of a2 - b2?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
If a + b = 11 and a - b = 5
Formula used:
a2 - b2 = (a + b) × (a - b)
Calculation:
a + b = 11
a - b = 5
⇒ a2 - b2 = (11) × (5)
⇒ a2 - b2 = 55
∴ The correct answer is option (4).
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