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2 years ago

11

Factorise the following: (4x−15)2−(x+12)2

2 answers:

stiks02 [169]2 years ago

8 0

Answer:

2x+9

Step-by-step explanation:

(4x-15)-(2x-24)

4x - 2x - 15 - -24

4x - 2x - 15 + 24

2x - 15 + 24

2x + 9

2x+9

GarryVolchara [31]2 years ago

8 0

There is the answer

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Step-by-step explanation:

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1 year ago

-1/3/4 + 1/1/6 equals what in fractions

Gnesinka [82]

Step-by-step explanation:

Simplify fractions on fractions

$\frac{1}{ \frac{3}{4} }$

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2 years ago

What is the cube root of 216x^9y^18?

PilotLPTM [1.2K]

Answer:

The cube root of given expression is $6x^3y^6$ .

Step-by-step explanation:

The given expression is

$\sqrt[3]{216x^9y^{18}}$

It can be written as

Use the exponent property: $a^{mn}=(a^m)^n$

$\sqrt[3]{216x^9y^{18}}=\sqrt[3]{6^3(x^3)^3(y^6)^{3}}$

$\sqrt[3]{216x^9y^{18}}=\sqrt[3]{(6x^3y^6)^{3}}$

$\sqrt[3]{216x^9y^{18}}=6x^3y^6$

Therefore the cube root of given expression is $6x^3y^6$ .

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2 years ago

the height of an equivalent triangle is 15cm and it's perimeter is 36cm find the area of the triangle

OlgaM077 [116]

Answer:

The area is 72 cm².

Step-by-step explanation:

Since it is equivalent triangle

h = b

so,

b + b + b (since all sides are equal)= 36 cm

3b = 36 cm

or, b = 36/3

so, b = 12 cm

so

area of triangle = (1/2)×b×h

= (1/2)×12cm×12cm

= 6cm × 12cm

= 72 cm²

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2 years ago