Maths Exam

1. Expand the Brackets

1. Expand the brackets to simplify the following:$$ 4\left(-6c + 4j\right) $$
Correct Answer
$$ -24c + 16j $$
2. Expand the brackets to simplify the following:$$ -6\left(1g + -5Y\right) $$
Correct Answer
$$ -6g + 30Y $$

2. Expand the Brackets

1. Expand the brackets to simplify the following:$$ {\left(6c + -5d\right)}^{2} $$
Correct Answer
$$ 36{c}^{2} - 60cd + 25{d}^{2} $$
2. Expand the brackets to simplify the following:$$ {\left(5c + -4j\right)}^{2} $$
Correct Answer
$$ 25{c}^{2} - 40cj + 16{j}^{2} $$

3. Collect Like Terms

1. Collect like terms to simplify the following:$$ -6R + 3h + 6n + 5h $$
Correct Answer
$$ -6R + 8h + 6n $$
2. Collect like terms to simplify the following:$$ (-X) + 3f + 2u + 2f $$
Correct Answer
$$ (-X) + 5f + 2u $$

4. Adding fractions

1. Simplify the following:$$ \frac{-3x + 6}{-6x + -6} + \frac{1x + -5}{1x + -5} $$
Correct Answer
$$ \frac{-9{x}^{2} + 45x}{-6{x}^{2} + 24x + 30} $$
2. Simplify the following:$$ \frac{5x + 3}{2x + -2} + \frac{2x + -2}{1x + 3} $$
Correct Answer
$$ \frac{9{x}^{2} + 10x + 13}{2{x}^{2} + 4x - 6} $$

5. Evaluate the following equations.

1. Find h to 3 significant figures in the following equation: $$ h = {6}^{y} - \frac{x}{z} + \cos\left(\ln\left(z\right)\right),$$ Given that x = -3.0, y = -5.0, z = 6.0
Correct Answer
0.281
2. Find h to 3 significant figures in the following equation: $$ h = {5}^{\sqrt{y}} - {2}^{xz},$$ Given that x = -4.0, y = 1.0, z = -4.0
Correct Answer
-65500

6. Rearrange the following equation.

1. Rearrange the following equation to get an expression for m: $$\frac{\left(x + z\right)\sin\left(y\right)}{\sqrt{-2 - y}} = \frac{\left(m + x\right)\ln\left(\frac{6}{z}\right)}{y + x},$$
Correct Answer
$$m = \frac{\frac{\left(x + z\right)\sin\left(y\right)}{\sqrt{-2 - y}}\left(y + x\right)}{\ln\left(\frac{6}{z}\right)} - x$$
2. Rearrange the following equation to get an expression for m: $$\frac{2z}{\sin\left(y\right)} - \left(1 - x\right)\cos\left(x\right) = \frac{-5zm}{\sqrt{y}},$$
Correct Answer
$$m = \frac{\frac{\left(\frac{2z}{\sin\left(y\right)} - \left(1 - x\right)\cos\left(x\right)\right)\sqrt{y}}{-5}}{z}$$

7. Quadratic Equation

Solve the following equation to get a value for x:$$4{x}^{2} + 4x = -1$$
Correct Answer
$$\frac{-1}{2}$$ and $$\frac{-1}{2}$$

8. Expand the Brackets

1. Expand the brackets to simplify the following:$$ -3\left(-4B + 1j\right) $$
Correct Answer
$$ 12B - 3j $$
2. Expand the brackets to simplify the following:$$ -2\left(6P + 5d\right) $$
Correct Answer
$$ -12P - 10d $$

9. Expand the Brackets

1. Expand the brackets to simplify the following:$$ {\left(4B + -2f\right)}^{2} $$
Correct Answer
$$ 16{B}^{2} - 16Bf + 4{f}^{2} $$
2. Expand the brackets to simplify the following:$$ {\left(-2a + -4Y\right)}^{2} $$
Correct Answer
$$ 4{a}^{2} + 16aY + 16{Y}^{2} $$

10. Collect Like Terms

1. Collect like terms to simplify the following:$$ -4X + -6h + 4l + -5h $$
Correct Answer
$$ -4X + -11h + 4l $$
2. Collect like terms to simplify the following:$$ 3R + 3y + -5Z + 1y $$
Correct Answer
$$ 3R + 4y - 5Z $$


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