Question

4:2(3+1)=? please answer​

Answer 1

Answer:

4:2(3+1)

4:2(4)

16:8

2:1

Step-by-step explanation:

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Answer 2

Answer:

Value of 4:2(3+1) is 1:2.

Step-by-step explanation:

Given,

$4:2(3 + 1)$

We want to find value of this

This is a problem of Ratio of Algebra .

But now question is what is ratio ?

Ratio means fraction.

If x and y are two numbers then ratio of x and y is $x:y$

For example,

Ratio of 2 and 3 is $2:3$

Given,

$4:2(3 + 1) \\ = 4:2 \times 4 \\ = 4:8 \\ = \frac{4}{8} \\ = \frac{1}{2} \\ = 1:2$

This is a problem of Algebra.

Some important Algebra formulas.

(a + b)² = a² + 2ab + b²

(a − b)² = a² − 2ab − b²

(a + b)³ = a³ + 3a²b + 3ab² + b³

(a - b)³ = a³ - 3a²b + 3ab² - b³

a³ + b³ = (a + b)³ − 3ab(a + b)

a³ - b³ = (a -b)³ + 3ab(a - b)

a² − b² = (a + b)(a − b)

a² + b² = (a + b)² − 2ab

a² + b² = (a − b)² + 2ab

a³ − b³ = (a − b)(a² + ab + b²)

a³ + b³ = (a + b)(a² − ab + b²)

Know more about Algebra:

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