Question

Find the value of 2(a² + ab) - ab where a = 5 & b = 2​

Answer 1

❥$\:{\red{\underline{\underline{\large{\mathtt{GIVEN}}}}}}$

• a = 5
• b = 2

❥$\:{\orange{\underline{\underline{\large{\mathtt{TO\:FIND}}}}}}$

• Value of 2(a²+ab)-ab

❥$\:{\purple{\underline{\underline{\large{\mathtt{SOLUTION}}}}}}$

⇒ 2(a² + ab) - ab

⇒ 2(5² + 5 × 2) - 5 × 2

⇒ 2(25 + 10) - 10

⇒ 2 × 35 - 10

⇒ 70 - 10

⇒ 60

★ Hence, the required answer is 60

Answer 2

⇒ 2(a² + ab) - ab

⇒ 2(5² + 5 × 2) - 5 × 2

⇒ 2(25 + 10) - 10

⇒ 2 × 35 - 10

⇒ 70 - 10

⇒ 60