Question

Subtract:

3a² + 6b² from 3a² + 6b²

Class 7 Maths​

Answer 1

To subtract : $3a^{2} + 6b^{2}$  from $3a^{2} + 6b^{2}$

Solution :

• To subtract given algebraic expression, we subtract like terms together

• Therefore, arranging given terms in correct order, we get,

       $( 3a^{2} + 6b^{2} ) - ( 3a^{2} + 6b^{2} )$

• Removing parenthesis and changing sign we subtract given expressions.

         $3a^{2} + 6b^{2} - 3a^{2} - 6b^{2} = 0$

    Hence, on subtracting $3a^{2} + 6b^{2}$  from $3a^{2} + 6b^{2}$   we get $0$ .

Answer 2

Answer:

Step-by-step explanation:

3a² + 6b² - ( 3a² + 6b² )

= 3a² + 6b² - 3a² - 6b² ( ∵ - × + = - )

= 3a² - 3a² + 6b² - 6b² ( ∵ like terms )

= 0 + 0

= 0