Grade 9 Math: Linear Relations and Equations Terms and Collecting Like Terms

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False

Simplify the following equation: $$5x^{2}+2(x^{2}-4y)-y$$

$$3x^{2}-9y$$
$$5x^{2}-9y$$
$$7x^{2}-7y$$
$$7x^{2}-9y$$

Simplify the following equation: $$x^2\times x^{2}+2(2x^{4}-3y)-xy+7x4y$$

$$5x^3-6y-xy+7x4y$$
$$5x^4-6y-9x7y$$
$$5x^4-6y-xy+7x4y$$
$$5x^2-4y-xy+7x4y$$

Simplify the following equation: $$(n^3)^{2}+n^{6}(8+7n)+4n^{7}$$

$$6n^{3}+11n^{7}$$
$$6n^{6}+11n^{7}$$
$$6n^{6}+11n^{5}$$
$$n^{6}+11n{7}$$
Expand the following equation: $$\frac{(6x(3x^2-4x+3))}{(3y(x^{2}+5-7y)}$$
$$\frac{x^3-x^2+18x}{2x^{2}y+15y-21y}$$
$$\frac{18x^2-24x^2+18x}{2x^{2}y+15y-21y}$$
$$\frac{18x^3-24x^2+18x}{2x^{2}y+15-21y}$$
$$\frac{18x^3-24x^2+18x}{2x^{2}y+15y-21}$$