32x62+32x37+32

=32x62+32x37+32x1

=32x(62+37+1)

=3200

32.62+32.37+32

=32.62+32.37+32.1

=32.(62+37+1)

=3200

tick mk nha

hok tốt

@Lâm

Bài 37:

a: \(\overrightarrow{AB}=\left(4;-8\right)\)

\(\overrightarrow{BC}=\left(5;5\right)\)

\(25+27-48-25-37=\left(25-25\right)+\left(27-37\right)-48\)

\(=0-10-48\)

\(=-58\)

= 25-25+27-37-48

=0+(-10)-48

=-10-48

=-58

25+27-48-25-37

=(25-25)+(27-37)-48

=0+0-48

=-48

1) (-37) + 14 + 26 + 37

= [(-37) + 37] + 14 + 26

= 0 + 40

= 40

2) (-24) + 6 + 10 + 24

= [(-24) + 24] + 6 + 10

= 0 + 16

= 16

3) 15 + 23 + (-25) + (-23)

= 15 + (-25) + [(-23) + 23]

= -10 + 0

= -10

4) 60 + 33 + (-50) + (-33)

= 60 + (-50) + [(-33) + 33]

= 10 + 0

= 10

\(c,\overline{735a2b}⋮̸2;⋮5\Rightarrow b=5\\ \Rightarrow\overline{735a25}⋮9\\ \Rightarrow7+3+5+a+2+5⋮9\\ \Rightarrow22+a⋮9\\ \Rightarrow a=5\\ \Rightarrow\overline{735a2b}=735525\\ b,\overline{5a27b}⋮2;⋮5\Rightarrow b=0\\ \Rightarrow\overline{5a270}⋮9\\ \Rightarrow5+a+2+7+0⋮9\\ \Rightarrow14+a⋮9\\ \Rightarrow a=4\\ \Rightarrow\overline{5a27b}=54270\)

c) \(735525\)
d) \(54270\)

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