Question

10. From the sum of 4 + 3x and 5 - 4x + 2x2, subtract the sum of 3x2 - 5x and --X2 + 2x +5.​

Answer 1

Answer:

Answer: 4x+4

Step-by-step explanation:

2x2+4x-5

added to

3x+4

gives

2x2+7x-1. --------(1)

and now add

3x2-5x

+

-x2+2x+5

we get

2x2-3x+5. ----------(2)

now add (1) & (2)

we get

4x+4

ie, answer

Answer 2

Answer:

$= 30-7x$

Step-by-step explanation:

1. Find the question given:

$(4 + 3x + 5 - 4x + 2$ x $2) -$ $($$3$ x $2 - 5x$ x $2$$+$$2$$x$$+$$5$$)$

2. Throw away the brackets and separate it to its own families:

$=4+3x+5-4x+2$ x $2-$$3$ x $2-5x$ x $2+2x+5$

3. Count the following:

= $(4+5+5+[2$ x $2]-$ $[$$3$ x $2$ x $2$$}$$])$ $-(5x+2x$$)$

$=(14+4-12)-7x$

$= 30-7x$

☝☝☝ You can ignore it if you don't want explanations

Step-by-step answer:

$(4 + 3x + 5 - 4x + 2$ x $2) -$ $($$3$ x $2 - 5x$ x $2$$+$$2$$x$$+$$5$$)$

$=4+3x+5-4x+2$ x $2-$$3$ x $2-5x$ x $2+2x+5$

= $(4+5+5+[2$ x $2]-$ $[$$3$ x $2$ x $2$$}$$])$ $-(5x+2x$$)$

$=(14+4-12)-7x$

$= 30-7x$

That's all! Hope it is understandable and helps you

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