" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b) (2y - √3)(y+1) = 2y^ + 2y - √3y - √3
c) (a + √2)(a - √3) = a^ - √3a + √2a - √6
d) (2√2 + k)(√2 - k) = 4 + 2√2k + √2k - k^ = 3√2k + 4 - k^
1.Wykonaj mnożenie, zredukuj wyrazy podobne:
a)(x + √5)(x - √5)=x²-5
b)(2y - √3)(y+1)=2y²+2y-√3y-√3=2y²+(2-√3)y-√3
c)(a + √2)(a - √3)=a²-√3a+√2a-√6=a²+(√2-√3)a-√6
d)(2√2 + k)(√2 - k)=4-2√2k+√2k-k²=4-√2k-k²
b)2y*y+2y*1-√3*y-√3*1=2y²+2y-y√3-√3=2y²+(2-√3)y-√3
c)a*a-a√3+√2*a-√2*√6=a²-a√3+a√2-√6=a²-(√3+√2)a-√6
d)2√2*√2-2√2*k+k√2-k*k=2*2-2√2k+√2k-k²=4-√2k-k²