Enrhifo
4-4\sqrt{2}\approx -1.656854249
Ehangu
4-4\sqrt{2}
Rhannu
Copïo i clipfwrdd
2\left(\left(\sqrt{2}\right)^{2}-2\sqrt{2}+1\right)-2
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(\sqrt{2}-1\right)^{2}.
2\left(2-2\sqrt{2}+1\right)-2
Sgwâr \sqrt{2} yw 2.
2\left(3-2\sqrt{2}\right)-2
Adio 2 a 1 i gael 3.
6-4\sqrt{2}-2
Defnyddio’r briodwedd ddosbarthu i luosi 2 â 3-2\sqrt{2}.
4-4\sqrt{2}
Tynnu 2 o 6 i gael 4.
2\left(\left(\sqrt{2}\right)^{2}-2\sqrt{2}+1\right)-2
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(\sqrt{2}-1\right)^{2}.
2\left(2-2\sqrt{2}+1\right)-2
Sgwâr \sqrt{2} yw 2.
2\left(3-2\sqrt{2}\right)-2
Adio 2 a 1 i gael 3.
6-4\sqrt{2}-2
Defnyddio’r briodwedd ddosbarthu i luosi 2 â 3-2\sqrt{2}.
4-4\sqrt{2}
Tynnu 2 o 6 i gael 4.
Enghreifftiau
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y = 3x + 4
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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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