Question

A. (akar 2+akar 3)(akar2+akar 3)
B. (akar 6+akar 5)(akar 6-akar 5)
C. 2akar 6 dikali akar 6 + akar 9
D. 4akar7 dikali 3akar 28
E. Akar 50 dikali akar 20

Jawab ya dengan caranya pliss!!

Answer 1

A. (√2+√3)(√2+√3)
= √4+√6+√6+√9
= 2+√12+3
= 2+√4x3+3
= (2+3)+2√3
= 5+2√3
B. (√6+√5)(√6-√5)
= √36-√30+√30-√25
= 6-5=1
C. 2√6x√6+√9
= 2√36+3
= 2x6+3
= 12+3 = 5
D. 4√7 x3√28
= 4√7 x 3√4x7
= 4√7 x (3x2)√7
= 4√7 x 6√7 =24 √49 = 24x 7 = 168
E. √50 x √20
= (√2 x 25) x (√5x4)
= 5√2 x 2√5 = 10√10
mudah mudahan benar yah..