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JDKSWSSAABJSIN
Answered

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Sagot :

ALEXISCANDIDOIN

Answer:

1.ab+cx

(3)(4)+(2)(-1)

12+(-2)

=10

2.5xy/ab

5(-1)(-2)/(3)(4)

5(2)/12

10/12

=5/6 or 83.33%

3.3a³+4z²-9b

3(3)³+4(-3)²-9(4)

3(27)+4(-9)-36

81+(-36)-36

45-36

=9

4.4yz+7ab-3x

4(-2)(-3)+7(3)(4)-3(-1)

4(6)+7(12)+3

24+84+3

=111

5.x²y³z²/2b²+4

( -1)²(-2)³(-3)²/2(4)²+4

1-8+9/2(16)+4

1-17/32+4

-16/36

= -4/9 or -0.4

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