1 rozwiazaniem nierownosci (5-3x)²<3x(3x-5) jest?
2 rownanie mx+3=x-5 nie ma rozwiazan jesli parametr m ma wartosc?
3 jezeli suma dwoch lczb wynosi 34 zas ich roznica 12 to tymi liczbami sa?
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1. (5-3x)² < 3x(3x-5)
25-9x<9x-15x
-9x-9x+15x < -25
-3x < -25 / (-3)
x> 25/3 = 8 i 1/3
3. 11 i 11
1. (5-3x)²<3x(3x-5)
25-30x+9x²<9x²-15x
9x²-9x²-30x+15x<-25
-15x<-25 /÷(-15)
x>²⁵/₁₅
x>1⅔
2. mx+3=x-5
mx-x=-3-5
m=-8
3. x+y=34
x-y=12
x=34-y
34-y-y=12
x=34-y
-2y=12-34
x=34-y
-2y=-22 /÷(-2)
x=34-y
y=11
x=34-11
y=11
x=23
y=11