(m-3)²=
(2a-5)²=
(7-3c)²=
(5x-2y)²=
(2-x³)²=
(xy-10)²=
(x-0,2)²=
(-4x-3y)²=
Soluções para a tarefa
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(m-3)ˆ2= 2m-3m-3m+9
2m-6m+9
-4m+9(-1)
4m=9
m=9/4 = 2.25
(2a-5)ˆ2= 4aˆ2-10a-10a+25
4aˆ2-20a+25
delta= bˆ2-4.a.c
(-20)ˆ2-4.4.25
(-400)(-400)
=-800
báskara= -b+-raizdelta/2a
-(-20)+-raiz(-800)/2.4
20+-0/8 = 20/8=2.5
(7-3c)ˆ2= 49-21c-21c-9cˆ2
-9cˆ2-42c+49
delta= bˆ2-4.a.c
(-42)ˆ2-4.(-9).49
1764-1764=0
báskara= -b+-raizdelta/2a
-(-42)+-0/2.(-9)
42+0/(-18)=2.33
(5x-2y)ˆ2=25xˆ2-10xy-10xy+4yˆ2
25x2-20xy+4yˆ2
delta=(-20)ˆ2-4.25.4
-400-400
=-800
báskara= -(-20)+-0/2.25
20+-0/50=0.4
(2-xˆ3)ˆ2= 4-2xˆ3-2xˆ3+2xˆ3
2xˆ3+4xˆ3+4
6xˆ3+4=0
6xˆ3+(2/x)ˆ3+4=0
6xˆ6+4xˆ3+8=0
(6xˆ3)ˆ2 +4xˆ3+8=0
6xˆ2+4x+8=0
delta=4ˆ2-4.6.8
16-192
-176=0
báskara= -4+-0/2.6
-4/12=-0.33
2m-6m+9
-4m+9(-1)
4m=9
m=9/4 = 2.25
(2a-5)ˆ2= 4aˆ2-10a-10a+25
4aˆ2-20a+25
delta= bˆ2-4.a.c
(-20)ˆ2-4.4.25
(-400)(-400)
=-800
báskara= -b+-raizdelta/2a
-(-20)+-raiz(-800)/2.4
20+-0/8 = 20/8=2.5
(7-3c)ˆ2= 49-21c-21c-9cˆ2
-9cˆ2-42c+49
delta= bˆ2-4.a.c
(-42)ˆ2-4.(-9).49
1764-1764=0
báskara= -b+-raizdelta/2a
-(-42)+-0/2.(-9)
42+0/(-18)=2.33
(5x-2y)ˆ2=25xˆ2-10xy-10xy+4yˆ2
25x2-20xy+4yˆ2
delta=(-20)ˆ2-4.25.4
-400-400
=-800
báskara= -(-20)+-0/2.25
20+-0/50=0.4
(2-xˆ3)ˆ2= 4-2xˆ3-2xˆ3+2xˆ3
2xˆ3+4xˆ3+4
6xˆ3+4=0
6xˆ3+(2/x)ˆ3+4=0
6xˆ6+4xˆ3+8=0
(6xˆ3)ˆ2 +4xˆ3+8=0
6xˆ2+4x+8=0
delta=4ˆ2-4.6.8
16-192
-176=0
báskara= -4+-0/2.6
-4/12=-0.33
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