Question

~ quiz ~
[tex] \sf \: 1.) \: 2 \sqrt{3} \: (2 \sqrt{40} + \sqrt{12} )[/tex]
[tex] \sf \: 2.) \: ( \sqrt{2} + \sqrt{5} )( \sqrt{2} - \sqrt{5}) [/tex]
gunakan cara​

Answer 1

Verified answer

Answer:

>>> Mathematics

> 8√30 + 12

> -3

Explain:

• Number 1

2√3 (2√40 + √12)

> 2√3 x 2√40 + 2√3 x √12

> 4√120 + 2√36

> (4√4 x √30) + (2√9 x √4)

> (4 x 2 x √30) + (2 x 3 x 2)

> 8√30 + 12

• Number 2

(√2 + √5) (√2 - √5)

> (a + b) (a - b)

> a² - b²

> √2² - √5² = 2 - 5

> 2 - 5 = -3

• 6 November 2022

Answer 2

Penjelasan dengan langkah-langkah:

1. 2√3 (2√40 + √12)

4√120 + 2√6

4√4 x √30 + 2√9 x √4

8√30 + 12

2.

(√2 + √5) (√2 - √5)

√2² - √5²

2 - 5

-3