Question

Va rog ajutatima !!
a) (√3-1)²+√12
b)(√5-√3)² +2√5•√27
c)2(√7+1)²-2(√7-2)²
d). (√8-√3)²+(√6-1)(√6+1)
e)(8x-4√5)(8x+4√5)

Answer 1

a) 3-2√3+1+2√3=4
b) 5-2√15+3+2√5×3√3=5-2√15+3+6√15=8+4√15
c) 2(7+2√7+1)-2(7-4√7+4)=2(8+2√7)-2(11-4√7)=16+4√7-22+8√7= -6+12√7
d) 8-2√24+3+6-1=8-2×2√6+3+5=8-4√6+8=16-4√6=4(4-√6)
e) 64x²-80

Sper că te-am ajutat!