Question

what is the answer of 3 and 4 please help!!!​

Answer 1

$\huge{\bigstar}$$\boxed{\huge{\red{\mathfrak{Answer}}}}$$\huge{\bigstar}$

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2 )

${-4x}^{10} - {12x}^{10}$

$-{16x}^{10}$

3 )

${\frac{1}{6}x}^{3} + {\frac{2}{5}x}^{3}$

$\frac{{5x}^{3}+{12x}^{3}}{30}$

$\frac{{17x}^{3}}{30}$