Question

Calcula:

a) (2 + 1) ∙ (3 − 2) − (4 − 5) ∙ (2 + 2) b) (32 − 1) ∙ (2 + 1) − (5 − 3) ∙ (4 + 3)
c) (3 − 5) ∙ (2 − 1) + 32 − − 1 d) ( − 2) − 32 + − ( − 1) ∙ (2 − 7)
e) ( + 2) ∙ ( − 1) − 3(22 − 1) − 2( − 4)

Answer 1

Explicación paso a paso:

a) (2+1)x(3-2)-(4-5)x(2+2)=

=3x1-(-1)x4=

=3x1+1x4=

=3+4=

=7

b)(32-1)x(2+1)-(5-3)x(4+3)=

=31x3-2x7=

=93-14=

=79

c)(3-5)x(2-1)+32-(-1)=

=-2x1+32+1=

=2+32+1=

=35

d)(-2)-32+(-1)x(2-7)=

=(-2)-32-1x(-5)

=(-2)-32+5=

=-34+5=

=-29

e)2x(-1)-3(22-1)-2(-4)=

=2x(-1)-3x21-2-4=

=-2-63-2-4=

=-67