Question

Ayuda!!!
3) 121 - x2 = 0
4) 3x2 + 16 = 0
5) 16x2 + 6 = 0​

Answer 1

RESPUESTA:

$121 - x2 = 0\\ 121 -2x =0\\-2x=-121\\x=-121/-2\\x=121/2\\x =60.5$

RPTA = "x"  →  60.5

$3\cdot x2 + 16 = 0$

$6x+16=0\\6x=0-16\\6x=-16\\x=\frac{-16}{6}\\Simplificar\\x=-\frac{8}{3}$

RPTA = "x" → 16/6

$16x\cdot \:2\:+\:6\:=0\\32x+6=0\\32x=0-6\\32x=-6\\x=-\frac{-6}{32}\\Simplifico\\x=-\frac{3}{16}$

RPTA = "x" → $-\frac{3}{16}$