Question

Use the formula to find the value of i)502×498

Answer 1

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Answer 2

The value of the expression is $502\times 498=249996$.

Step-by-step explanation:

Given : Expression $502\times 498$.

To find : Use the formula to find the value of expression ?

Solution :

Re-write the expression as,

$502\times 498=(500+2)\times (500-2)$

Applying algebraic formula,

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

Here, a=500 and b=2

Substitute the value,

$(500+2)(500-2)=(500)^2-(2)^2$

$502\times 498=250000-4$

$502\times 498=249996$

Therefore, the value of the expression is $502\times 498=249996$.

#Learn more

Factorise the value using expansion formulae

a) (602×598)

b) (103^2)

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