Question

if x=6 and y= 2 then 2x - 3y=?​

Answer 1

2×6-3×2

=12-6

=6

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Answer 2

Given:-

• x = 6
• y = 2

To Find:-

• 2x - 3y =??

Solution:-

2x - 3y

Substitute the given value we get

→ 2(6) - 3(2)

→ 12 -6

→ 6

Therefore , the required answer is 6

Additional Information!!

Some More identities!!

• (a + b)² = a² + b² +2ab

• ( a - b )² = a² + b² -2ab

• ( a² - b² ) = ( a - b ) ( a + b )

• ( a +b +c)² = (a² + b² + c²) + 2(ab + bc +ca)

• (a + b)³ = a³ + b³ + 3ab(a+b)

• (a-b)³ = a³ - b³ -3ab(a-b)

• ( a³ + b³) = (a+b) (a²-ab +b²)

• (a³ - b³) = (a -b) (a² + ab + b²)