Resuelvo los siguientes polinomios y compruebo si la respuesta dada es verdadera A. [2+1+5*(8-2)+8]+(-9-(-7)*(-8+5)+16)-5=+22 B. [-5+3-(-2)*8+3]-(-7+8-(-1)*(-5)]+(-18)=3 C. {-[6-(-5)*10+3*8]-2*[12+4*(-5)+(-20)]}=-24 D. {[-3+8*(-4)+10]-[7*(7-5)-(8-2)]}+(-5)=-38 E. {-[7+4-3*(3+1)]+[-17+10*(8-6)+2)}+6=12 F. {(2+5-(-1)*8+5]-[-6+4-(-8+2)*(-7+3)]}-10=36 G. {[-50-(7-10)*(10)+20]+[-3+11-(-5+8)(10)]}-6=-30 H. {2[-7+4(5+3)-15]-[-5+6-(3-5) (-10)]}+4=43 I. 6*[3+(-5+1)*2]+[(-7+5)+3*(4-2)]=-26 J. [4*(7-5)*(2-4)]-[(8-2)*5-2*(10-11)]=-30 Por favor ayudenme
Respuestas
Respuesta:
Explicación paso a paso:
A. [2+1+5*(8-2)+8]+(-9-(-7)*(-8+5)+16)-5=+22
=3+5(8−2)+8−9−−7(−8+5)+16−5
=3+(5)(6)+8−9−−7(−8+5)+16−5
=3+30+8−9−−7(−8+5)+16−5
=33+8−9−−7(−8+5)+16−5
=41−9−−7(−8+5)+16−5
=41−9−(−7)(−3)+16−5
=41−9−21+16−5
=41+−30+16−5
=41+−14−5
=27−5
=22
B. [-5+3-(-2)*8+3]-(-7+8-(-1)*(-5)]+(-18)=3
=−2−(−2)(8)+3−(−7+8−(−1)(−5))−18
=−2−(−16)+3−(−7+8−(−1)(−5))−18
=14+3−(−7+8−(−1)(−5))−18
=17−(−7+8−(−1)(−5))−18
=17−(1−(−1)(−5))−18
=17−(1−5)−18
=17−(−4)−18
=21−18
=3
C. {-[6-(-5)*10+3*8]-2*[12+4*(-5)+(-20)]}=-24
=−(6−(−50)+(3)(8))−2(12+(4)(−5)−20)
=−(56+(3)(8))−2(12+(4)(−5)−20)
=−(56+24)−2(12+(4)(−5)−20)
=−80−2(12+(4)(−5)−20)
=−80−2(12+−20−20)
=−80−(2)(−28)
=−80−(−56)
=−24
D. {[-3+8*(-4)+10]-[7*(7-5)-(8-2)]}+(-5)=-38
=−3+−32+10−(7(7−5)−(8−2))−5
=−35+10−(7(7−5)−(8−2))−5
=−25−(7(7−5)−(8−2))−5
=−25−((7)(2)−(8−2))−5
=−25−(14−(8−2))−5
=−25−(14−6)−5
=−25−8−5
=−33−5
=−38
E. {-[7+4-3*(3+1)]+[-17+10*(8-6)+2)}+6=12
=−(11−3(3+1))−17+10(8−6)+2+6
=−(11−(3)(4))−17+10(8−6)+2+6
=−(11−12)−17+10(8−6)+2+6
=1−17+10(8−6)+2+6
=1−17+20+2+6
=1+3+2+6
=1+5+6
=12
F. {(2+5-(-1)*8+5]-[-6+4-(-8+2)*(-7+3)]}-10=36
=7−(−8)+5−(−6+4−(−8+2)(−7+3))−10
=15+5−(−6+4−(−8+2)(−7+3))−10
=20−(−6+4−(−8+2)(−7+3))−10
=20−(−2−(−8+2)(−7+3))−10
=20−(−2−−6(−7+3))−10
=20−(−2−(−6)(−4))−10
=20−(−2−24)−10
=46−10
=36
G. {[-50-(7-10)*(10)+20]+[-3+11-(-5+8)(10)]}-6=-30
=−50−(−3)(10)+20−3+11−(−5+8)(10)−6
=−50−(−30)+20−3+11−(−5+8)(10)−6
=−20+20−3+11−(−5+8)(10)−6
=0−3+11−(−5+8)(10)−6
=0+8−(−5+8)(10)−6
=0+8−(3)(10)−6
=0+8−30−6
=0+−22−6
=−22−6
=−28
H. {2[-7+4(5+3)-15]-[-5+6-(3-5) (-10)]}+4=43
=2(−7+(4)(8)−15)−(−5+6−(3−5)(−10))+4
=2(−7+32−15)−(−5+6−(3−5)(−10))+4
=2(25−15)−(−5+6−(3−5)(−10))+4
=(2)(10)−(−5+6−(3−5)(−10))+4
=20−(−5+6−(3−5)(−10))+4
=20−(1−(3−5)(−10))+4
=20−(1−(−2)(−10))+4
=20−(1−20)+4
=20−(−19)+4
=39+4
=43
I. 6*[3+(-5+1)*2]+[(-7+5)+3*(4-2)]=-26
=6(3+(−4)(2))−7+5+3(4−2)
=6(3+−8)−7+5+3(4−2)
=(6)(−5)−7+5+3(4−2)
=−30−7+5+3(4−2)
=−30+−2+3(4−2)
=−30−2+(3)(2)
=−30−2+6
=−30+4
=−26
J. [4*(7-5)*(2-4)]-[(8-2)*5-2*(10-11)]=-30
=(4)(2)(2−4)−((8−2)(5)−2(10−11))
=8(2−4)−((8−2)(5)−2(10−11))
=(8)(−2)−((8−2)(5)−2(10−11))
=−16−((8−2)(5)−2(10−11))
=−16−((6)(5)−2(10−11))
=−16−(30−2(10−11))
=−16−(30−(2)(−1))
=−16−(30−(−2))
=−16−32
=−48
Listo cariño, es muy fácil solo empiezas quitando los paréntesis,corchetes,llaves etc y tener en cuenta la ley de signos: