Zad 17/91 matematyka z plusem z 2 gimnazjum
Wykonaj mnożenie !
a) (x + √5)(x-√5)
b) (2y - √3)(y+1)
c) (a +√2)(a-√3)
d) (2√2 +k)(√2-k)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) (x+7)(2x-1)=2x(x wez do kwadratu)-x+14x-7=2x(x do kwadratu)+13x-7
b) (2a-1)(a+4)=2a(a do kwadratu)+8a-a-4=2a(a do kwadratu)+7a-4
c) (4a-1)(2-3a)=8a-12a(a do kwadratu)-2+3a=2a(do kwadratu)+7a-2
d) (a(a do potęgi 5-1)(a+1)=a(do potęgi 6)+a(do potęgi 5)-a-1
a) x²-√5x+√5x-5=x²-5
b) 2y²+2y-√3y-√3
c)a²-√3a+√2a+√6=a²-a+√6
d)4-2√2k+√2k-k²=4-√2-k²