Question

Zapisz w postaci sumy:
a)2(2√3-√5)
b)-√3(1+2√3)
c)(√5+1)²
d)(5√2–1)(5√2+1)
e)(2√2-1)²
f)(2√3+3)(3-2√3)
g)(2+√5)(1-√3)
h)2√3(7√3-1)²

Answer 1

a)2(2√3-√5)=2*2√3-2*√5
b)-√3(1+2√3)=-√3*1+(-√3)*2√3
c)(√5+1)²=√5*√5+1*1
d)(5√2–1)(5√2+1)=5√2*5√2-1*1
e)(2√2-1)²=2√2*2√2-1*(-1)
f)(2√3+3)(3-2√3)=3*3-2√3*2√3
g)(2+√5)(1-√3)=2*1+2*(-3)+√5*1+√5*(-3)
h)2√3(7√3-1)²=2√3*7√3*7√3+2√3*(-1)*(-1)