Oblicz Wartości:
a) -(xkwadrat-3x-4)+(-2+x+3xkwadrat) Dla: X= -3
b) (2a-3b)-(4a+2b) Dla a=3 1/2, b=1 1/3
Daje Naj!!!
a)
-(x²-3x-4)+(-2+x+3x²) =-x²+3x+4-2+x+3x²=2x²+4x+2
dla x= -3
2*(-3)²+4*(-3)+2=2*9-12+2=18-12+2=8
b)
(2a-3b)-(4a+2b) =2a-3b-4a-2b=-2a-5b
dla a=3 1/2 b=1 1/3
-2*7/2-5*4/3=-7-20/3=-7-6 2/3=-13 2/3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)
-(x²-3x-4)+(-2+x+3x²) =-x²+3x+4-2+x+3x²=2x²+4x+2
dla x= -3
2*(-3)²+4*(-3)+2=2*9-12+2=18-12+2=8
b)
(2a-3b)-(4a+2b) =2a-3b-4a-2b=-2a-5b
dla a=3 1/2 b=1 1/3
-2*7/2-5*4/3=-7-20/3=-7-6 2/3=-13 2/3