Question

√2a² please answer how to find this
​

Answer 1

Answer: Here, a=2,b=a and c=−a

2

Using the formula

x=

2a

−b

b

2

​

−4ac

​

⇒x=

2×2

−a±

a

2

​

−4×2×−a

2

​

=

4

−a±

9a

2

​

​

=

4

−a±3a

​

⇒x=

4

−a+3a

​

=

2

a

​

.x=

4

−a+3a

​

=−a⇒x=

2

a

​

,−a

Answer 2

Answer:

$a \sqrt{2}$

Step-by-step explanation:

$\sqrt{ {2a}^{2} }$

Apply radical rule

$= \sqrt{2} \sqrt{ {a}^{2} }$

By assuming

$a \geqslant 0$

$= \sqrt{2 \: a}$

$= a \sqrt{2}$

Hope it helps you from my side