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3 years ago

Choose the correct simplification of the expression (3x - 6)(2x^2 - 4x - 5) ?

Mathematics

2 answers:

topjm [15]3 years ago

7 0

= 3x(2x^2 - 4x - 5) - 6(2x^2 - 4x - 5)

= 6x^3 - 12x^2 - 15x - 12x^2 + 24x + 30

= 6x^3 - 24x^2 + 9x + 30 (answer)

emmasim [6.3K]3 years ago

7 0

Answer:

6x³ -24x² - 9x + 30

Step-by-step explanation:

For the simplification of such equations, we use the VBODMAS method.

This means first we simplify V i.e. Vinculum or Bar

then B i.e. Brackets,

O i.e. order of exponent roots

D i.e. division

M i.e. multiplication

A i.e. addition

S i.e. subtraction

Now, solving given expression,

(3x - 6)(2x² - 4x - 5)

= 6x³ - 12x² - 15x -12x² + 24x + 30 { We mulplied both brackets term}

{ Also, xᵃ × xᵇ = xᵃ⁺ᵇ }

= 6x³ -24x² - 9x + 30

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The vector ab has a magnitude of 20 units and is parallel to the<br> vector 4i + 3j.<br> find ab.

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The vector ab has a magnitude of 20 units and is parallel to the

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<h3>How to find the vector?</h3>

If we have given a vector v of initial point A and terminal point B

v = ai + bj

then the components form as;

AB = xi + yj

Here, xi and yj are the components of the vector.

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The vector ab has a magnitude of 20 units and is parallel to the

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Learn more about vectors;

brainly.com/question/12500691

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