Question

evaluate the following products without actual multiplication 30.5*29.5
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Answer 1

Answer:

Hey mate ur answer is 899.75

Step-by-step explanation:

30.5×29.5

(30+0.5)(30-0.5)

(a+b)(a-b)=(a²-b²)

(30)²-(.5)²

900-0.25

899.75

Answer 2

Answer:

899.75

Step-by-step explanation:

(30+0.5)(30-0.5)

Using a^2-b^2=(a+b)(a-b)

=30^2 - 0.5^2

900-0.25

=899.75