Question

AJUTOR ALGEBRA CLS A 6-A EX 22 SI 26

Answer 1

22a) -2-12-30= -14-30= -44
b) -5x[-4-3x-3]= -5x[-4-9]= -5x-13= 65
c) -22+(-4)x[-100+104]= -22+(-4)x4= -22-16= -38
d) 200-7x[(-25+28)-3x(-2)]=200-7x[-3+6]=200-7x3=200-21=179
e) -2x{-2x[-2x5+1]}= -2x{-2x[-10+1]}= -2x{-2x(-9)}= -2x18= -36

26. a) [918-1044]x0= -126x0 = 0 
b) -3-10x[362-10x(-24-6)]= -3-10x[362-10x(-30)]= -3-10x[362+300]= -3-10x662= -3-6620= -6623
c) -10x{100-[100-99]}= -10x{100-1}=10x99=990
d) -1+5x[-6x(-5)-17]-8x7= -1+5x[30-17]-57= -1+5x13-57= -1+65-57= 64-57=7
e) {-3x[-7x3+24+5]+20-4}x2= {-3x[-21+29]+20-4}x2= {-3x8+20-4}x2= {-24+20-4}x2= {-4-4}x2= -8x2= -16