Question

Plisss ayudaa Doy corona

Answer 1

Explicación y respuesta paso a paso:

1.)

$x^{2} +2x-15<0\\(x+3)(x-5)<0\\x=-3 ; x=5\\xE<-3, 5>$

2.)

$2(x+3)-1\geq 7(x+3)+2\\2(x+3)-7(x+3)\geq 2+1\\-5(x+3)\geq 3\\-5x-15\geq 3\\-5x\geq 18\\x\leq -\frac{18}{5}$

3.)

$5x+7\leq x-1\\4x\leq -8\\x\leq -2\\xE<-oo,-2[$

4.)

$x^{2} -2x-24\leq 0\\x^{2} +4x-6x-24\\x.(x+4)-6(x+4)\leq 0\\(x+4)(x-6)\leq 0\\x=-4;x=6\\xE[-4,6[$