Question

Wykonaj działanie a) (√3+2√2)(4√3-√2)

b)(3-√7)(2+2√7)

c) (3+4√2)²

Answer 1

a)(√3+2√2)(4√3-√2)=12+8√6-√6-4=7√6-8

b)(3-√7)(2+2√7)=6-2√7+6√7-14=4√7-8 =4(√7-2)

c)(3+4√2)² =9+24√2+32=24√2+41