Question

sabendo que.... calcule x e y

Answer 1

Resposta:

valore de x e y que satisfaz a soma das matrizes?

$x=[1]\\y=[-1,0,1]$

$\left[\begin{array}{cc}x^{2} &y^{2} \\x^{2} &y^{2} \end{array}\right] + \left[\begin{array}{cc}3x &-y \\4x &2y \end{array}\right] = \left[\begin{array}{cc}x^{2}+3x &y^{2}-y \\x^{2} +4x&y^{2}+2y\end{array}\right] = \left[\begin{array}{cc}4&0\\5&-1\end{array}\right]$

Explicação passo-a-passo:

encontrando as raízes?

$x^{2} +3x=4\\x^{2} +4x=5\\y^{2} -y=0\\y^{2} +2y=-1$

$x^{2} +3x-4=0 \\ raizes \\x'=1 \\ x"=-4 (nao)$

$x^{2} +4x-5=0 \\ raizes \\x'=1 \\ x"=-5 (nao)$

$y^{2} -y=0 \\ raizes \\x'=1 \\ x"=0$

$y^{2} +2y+1=0 \\ raizes \\x'=x"=-1$