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3 years ago

12

Factorise this with working: 3x –

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1 answer:

stich3 [128]3 years ago

7 0

3x - x² = x*3 - x*x
= x(3 - x)

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Nana76 [90]

Answer:

34

Step-by-step explanation:

that what i think

8 0

3 years ago

Read 2 more answers

(x3 - 2x² - 1) + (x - 1)

SSSSS [86.1K]

Answer:

x^3 -2x^2 -1 + (x-1)

= x^3 -2x^2 + x -2

= (x-2)(x^2+1)

Hope this helps!

5 0

3 years ago

How do you writ 1.660 in scientific notation

belka [17]

Answer:

$1.66 * 10^{0}$

Step-by-step explanation:

1.660

we would only move the decimal point once.

1.66 * 10^0

10^0 = 1

7 0

3 years ago

100^a x 1000^b can be written in the form 10^w <br><br> Show that w = 2a + 3b

Elena L [17]

$100^a \time 1000^b = 10^{2a} \times 10^{3b} = 10^{2a + 3b}$

$10^{w} = 10^{2a + 3b}$

$w = 2a + 3b \text { (shown)}$

3 0

3 years ago

Use fraction models to solve two and four sevenths plus three and two fourths equals blank

jenyasd209 [6]

Answer:

$6 \frac{1}{14}$

Step-by-step explanation:

Write down the problem;

$2 \frac{4}{7} + 3 \frac{2}{4}$

Simplify

$2 \frac{4}{7} + 3 \frac{1}{2}$

Convert so that the fractions have a common denominator; multiply the numerator and denominator of both fractions such that the denominators are equal;

$2 \frac{8}{14} + 3 \frac{7}{14}$

Add the fractions;

$5 \frac{15}{14}$

Convert to mixed number;

$6 \frac{1}{14}$

3 0

2 years ago