Question

4x²-16.................
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Answer 1

Answer:

if you want value of X then it is2

Step-by-step explanation:

4x^2=16

x^2=16/4=4

X=2

Answer 2

Answer:

Required answer is (2x-4)(2x+4).

Step-by-step explanation:

Given,

$4 {x}^{2} - 16$

We know,

$4 {x}^{2} = {(2x)}^{2}$

and

$16 = {4}^{2}$

So,

$4 {x}^{2} - 16 \\ = {(2x)}^{2} - {4}^{2}$

According to Algebra's formula,

${a}^{2} - {b}^{2} = (a + b)(a - b)$

So,

${(2x)}^{2} - {4}^{2} \\ = (2x - 4)(2x - 4)$

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,

1) https://brainly.in/question/13024124

2) https://brainly.in/question/1169549

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