Cari nilai y
y=\left(r-5\right)\left(r+3\right)
Cari nilai r
r=\sqrt{y+16}+1
r=-\sqrt{y+16}+1\text{, }y\geq -16
Bagikan
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y=r^{2}-2r-15
Tukarkan sisi sehingga semua suku variabel ada di sisi kiri.
Contoh
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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