Question

८३) A+ B = 10, A - B = 5, A2 - B2 = ?
अ) 30
ब) 40
क) 50
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Answer 1

formula :

A^2 -B^2 = (A+B)(A-B)

given:

A+B=10

A-B=5

A^2 -B^2

=(10)(5)

=50

क) 50

Answer 2

Step-by-step explanation:

BY USING A²-B²=(A+B)(A-B)

A+ B = 10, A - B = 5,

=10 x 5=50