Question

Find the value of 2a-3b+7ab if a=2 , b=1​

Answer 1

Answer:

15 is right answer.

Step-by-step explanation:

2a-3b+7ab=0, 2(2)-3(1)+7(2)(1)=0,4-3+14=0 ,1+14=15

Answer 2

• We have to evaluate the above expression by using the given data.

         Given data:- $a=2,b=1.$

         To find:- Value of above expression $2a-3b+7ab.$

         Solution:-

• To solve the above equation we will follow the BODMAS rule.

• BODMAS is an order of mathematic operations.

• BODMAS rule is to be followed while solving expressions in mathematics. It stands for,

           B= bracket

           O= order of power or rules

           D= division

           M= multiplication

           A= addition

           S= subtraction

    Now put the value a and b in the given equation we get,

        $2a-3b+7ab\\=2(2)-3(1)+7(2)(1)\\=4-3+14\\=1+14\\=15$

     Hence we will get the value is $15.$