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Znanstveni zapis realnog broja je decimalni broj s jednim cijelim mjesto, koji je pomnožen s potencijom broja 10.
Točno
Netočno
Formula za kvadrat binoma je
a2−b2 = (a−b)⋅(a+b)a^2-b^2\ =\ \left(a-b\right)\cdot\left(a+b\right)a2−b2 = (a−b)⋅(a+b)
(a+b)2=a2 + b2\left(a+b\right)^2=a^2\ +\ b^2(a+b)2=a2 + b2
(a+b)2=a2+2⋅a⋅b+b2\left(a+b\right)^2=a^2+2\cdot a\cdot b+b^2(a+b)2=a2+2⋅a⋅b+b2
(a+b+c)2=a2+b2+c2+2⋅a⋅b+2⋅a⋅c+2⋅b⋅c\left(a+b+c\right)^2=a^2+b^2+c^2+2\cdot a\cdot b+2\cdot a\cdot c+2\cdot b\cdot c(a+b+c)2=a2+b2+c2+2⋅a⋅b+2⋅a⋅c+2⋅b⋅c
Razliku kubova
(a−b)⋅(a2−ab+b2)\left(a-b\right)\cdot\left(a^2-ab+b^2\right)(a−b)⋅(a2−ab+b2)
(a−b)⋅(a2+ab+b2)\left(a-b\right)\cdot\left(a^2+ab+b^2\right)(a−b)⋅(a2+ab+b2)
(a−b)⋅(a2−ab−b2)\left(a-b\right)\cdot\left(a^2-ab-b^2\right)(a−b)⋅(a2−ab−b2)
(a+b)⋅(a2−ab+b2)\left(a+b\right)\cdot\left(a^2-ab+b^2\right)(a+b)⋅(a2−ab+b2)
Da li vrijedi (a−b)2=(b−a)2\left(a-b\right)^2=\left(b-a\right)^2(a−b)2=(b−a)2
Da
Ne
Jednočlani izraz ili monom je:
−32x2y-\frac{\sqrt{3}}{2}x^2y−23x2y
3x2y−x2y3\sqrt{3}x^2y-x^2y^33x2y−x2y3
2.4x3y2−3.7ab+2.6x2y2.4x^3y^2-3.7ab+2.6x^2y2.4x3y2−3.7ab+2.6x2y
3+x2y\sqrt{3}+x^2y3+x2y
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