Simplify $$2y\times y + 3x - 3y^2$$ as much as possible

$$8\times y \times y \times x \times y^2$$

$$2\times y \times y \times x \times y^2$$

The expression can't be further simplified

Simplify $$a^3 + a^2 - a$$ as much as possible

The expression can't be further simplified

$$8a \times b $$$$- 6a^2 \times b^2$$

The expression can't be further simplified

The expression can't be further simplified

$$6 a \times c + 5 d \times c $$

The expression can't be further simplified

...

Calculate and simplify the expressions if possible:

Calculate and simplify the expressions if possible:

a): $a + b \cdot a + b$
b): $a \cdot b + 3 \cdot a$
c): $a + 3 \cdot b \cdot a + 4 \cdot b$
d): $\begin{aligned} x + 2 \cdot y \cdot y \\ + 4 \cdot x \cdot y - 3 \cdot y \end{aligned}$
e): $x \cdot x \cdot y + y$
f): $x \cdot y + x \cdot y + x \cdot y + x \cdot y$

Calculate and simplify the expressions if possible:

a): $2 a + a - b + 3 + 3 b$
b): $2 a + a^{2} + 2 a^{2} - a$
c): $2 a \cdot a + 2 - b - 4$
d): $- c + b \cdot b - c \cdot b + 1$
e): $\begin{aligned} 3 \cdot b \cdot c \cdot a - a \cdot b \\ + b \cdot c - 2 \cdot a \cdot b \end{aligned}$
f): $- a^{2} \cdot a + 2 \cdot a \cdot b \cdot a + 2 \cdot a^{3}$

Simplify the expressions as much as possible:

Simplify the expressions as much as possible:

a): $\begin{aligned} 6 \cdot x \cdot x + 3 \cdot t \cdot 7 \\ - 4 x^{2} + 6 \cdot 5 \end{aligned}$
b): $\begin{aligned} 12 a \cdot 2 a + 3 w \cdot 3 w \\ - a \cdot a - w \cdot w \end{aligned}$
c): $15 \cdot 3 s \cdot s - 7 s^{2} \cdot 3 + 9 s \cdot 5 s$
d): $k \cdot k \cdot k + k \cdot 2 k + 5 k$
e): $w^{2} + 3 w - 5 w^{2} + w^{3}$
f): $13 n^{4} - 4 n^{3} \cdot n + n \cdot 5 n^{2} \cdot 5 n$

Simplify the expressions as much as possible:

Calculate and simplify the expressions:

You can find the solutions here.