(2x + 1)(x + 2) Multiply the following polynomial

Mathematics

1 answer:

leva [86]3 years ago

3 0

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{2 {x}^{2} + 5x + 2}}}}}$

Step-by-step explanation:

$\sf{(2x + 1)(x + 2)}$

Use distributive property

$\longrightarrow{ \sf{2x(x + 2) + 1(x + 2)}}$

$\longrightarrow{ \sf{2 {x}^{2} + 4x + x + 2}}$

Collect like terms

$\longrightarrow{ \sf{2 {x}^{2} + 5x + 2}}$

Hope I helped!

Best regards! :D

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Step-by-step explanation:

A few formulas an definitions which will help us:

(1) $\pi=\frac{c}{d}$ , where c is the circumference of a circle and d is its diameter

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We can rearrange equation (1) to put d in terms of π and c, giving us (4) $d = \frac{c}{\pi}$ , and we can make a few substitutions in (2) using (3) and (4) to get use the area in terms of the circumference and π:

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