Question

Please solve this
I mark him/her as brainlist
​

Answer 1

1.

$3 {x}^{2} + 2 \sqrt{7 \times 3} + 7 = 0$

$3 {x}^{2} + \sqrt{7 \times 3} x + \sqrt{7 \times 3} x + 7$

$\sqrt{3} x( \sqrt{3} x + \sqrt{7} ) + \sqrt{7} ( \sqrt{3} x + \sqrt{7)}$

$( \sqrt{3} x + \sqrt{7} )( \sqrt{3} x + \sqrt{7} )$

$= {( \sqrt{3} x + \sqrt{7} )}^{2}$

2.

${( \sqrt{20} x)}^{2} + 2 \times \sqrt{20} x \times \sqrt{3} + {( \sqrt{3)} }^{2}$

$= {( \sqrt{20}x + \sqrt{3}) }^{2}$

or

${(2 \sqrt{5}x + \sqrt{3}) }^{2}$

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Answer 2

Answer:

1.

3 {x}^{2} + 2 \sqrt{7 \times 3} + 7 = 03x

2

+2

7×3

+7=0

3 {x}^{2} + \sqrt{7 \times 3} x + \sqrt{7 \times 3} x + 73x

2

+

7×3

x+

7×3

x+7

\sqrt{3} x( \sqrt{3} x + \sqrt{7} ) + \sqrt{7} ( \sqrt{3} x + \sqrt{7)}

3

x(

3

x+

7

)+

7

(

3

x+

7)

( \sqrt{3} x + \sqrt{7} )( \sqrt{3} x + \sqrt{7} )(

3

x+

7

)(

3

x+

7

)

= {( \sqrt{3} x + \sqrt{7} )}^{2}=(

3

x+

7

)

2

2.

{( \sqrt{20} x)}^{2} + 2 \times \sqrt{20} x \times \sqrt{3} + {( \sqrt{3)} }^{2}(

20

x)

2

+2×

20

x×

3

+(

3)

2

= {( \sqrt{20}x + \sqrt{3}) }^{2}=(

20

x+

3

)

2

or

{(2 \sqrt{5}x + \sqrt{3}) }^{2}(2

5

x+

3

)

2

hey hope it helps u