Explicación paso a paso:
5(x-3)=2x+3
5x-15=2x+3
5x-2x=3+15
3x=18
×=18/3
×=6
x2+x=30
x2+×-30=0
(x+6)(×-5)=0
x-5=0
×=5
(×+2)2=9
[tex]x + 2 = \sqrt{9 } [/tex]
x+2=3
x=1
(x+2)(×-3)=0
×= - 2
×=3
e)4
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Verified answer
Explicación paso a paso:
5(x-3)=2x+3
5x-15=2x+3
5x-2x=3+15
3x=18
×=18/3
×=6
x2+x=30
x2+×-30=0
(x+6)(×-5)=0
x-5=0
×=5
(×+2)2=9
[tex]x + 2 = \sqrt{9 } [/tex]
x+2=3
x=1
(x+2)(×-3)=0
×= - 2
×=3
e)4