Question

982 × 67 + 982 × 74 + 982 × 45 - 982 × 89 - 982 × 77​

Answer 1

Solution

Rational Number : A rational number is a fractional number which is in the form of a p/q , where q is ≠ 0.

Some examples are 2/5,3/6,7/8 , 2/3, 2/9 and so on.

Here , see the denominator 5,6,8,9 &3 all are >0

=>Rational number can be further converted into decimal form e.g., 1/2= 0.5

Learn more:

Types

Real Numbers ( real numbers includes all the integers )

Natural Numbers

Whole Numbers

Standard form of Rational Number:

Rational number having fractional values with no common factor between dividend and divisor and Divisor be positive.

e.g., 12/36= 2/6= 1/3

Answer 2

Answer:

Hey there

So let's solve your your problem step by step.

We know that

(a+b)^2=a^2 + b^2 + 2ab.

So

We already have values for LHS as 5 and value of ab as 3.

So,

(a+b)^2 =5^2 = 25

And, 2ab = 2*3 = 6

Now we substitute the values for both in general equation and we get,

25 = a^2 + b^2 + 6

a^2 + b^2 = 25 -6 = 19.

Therefore, the answer to your question is 19.