Respuesta:
3x+x²+10= 20
x²+2x=15
-5/10x+4= 6.5
Explicación paso a paso:
3(-5)+(-5)²+10=20
-15+25+10=20
10+10=20
20=20
________________
(-5)²+2(-5)=15
25-10=15
15=15
-5/10(-5)+4=6.5
2.5+4=6.5
.........................
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Respuesta:
3x+x²+10= 20
x²+2x=15
-5/10x+4= 6.5
Explicación paso a paso:
3(-5)+(-5)²+10=20
-15+25+10=20
10+10=20
20=20
________________
(-5)²+2(-5)=15
25-10=15
15=15
________________
-5/10(-5)+4=6.5
2.5+4=6.5
Explicación paso a paso:
.........................