Question

Subtract it......
(x² + 4) from (-2x² + 9x + 1)
pls give relevant answers and also as fast as you can...
●I want step by step solution and if you will give me correct answers , I will choose your answer the BRAINLIEST and also follow you and will be always there to help you​

Answer 1

Answer:

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Step-by-step explanation:

340-67+76

Answer 2

Question:-

To subtract (x² + 4) from (-2x² + 9x +1)

Solution:-

We know while subtraction we should keep the term after (from) in the first.

Hence,

$\sf{(x^2 + 4) from (-2x^2 + 9x + 1)}$

= $\sf{(-2x^2 + 9x + 1) - (x^2 + 4)}$

= $\sf{ -2x^2 + 9x + 1 - x^2 - 4}$

Now putting like terms together,

= $\sf{-2x^2 - x^2 + 9x + 1 - 4}$

= $\sf{-3x^2 + 9x - 3}$

Additional Information:-

• When a negative number is multiplied by a negative number the result is always positive.$\sf{-a\times -b = ab}$

• When a negative number is multiplied by a positive number the result is always negative. $\sf{-a\times b = -ab}$

• When a positive number is multiplied by a negative number the result is always negative. $\sf{a \times -b = -ab}$

• When a positive number is multiplied by a positive number the result is always positive. $\sf{a \times b = ab}$

• In an equation if two negative numbers of the same terms are there then they will be added but the sign of the result will be negative. $\sf{Eg.-> -4 -3 = -7}$ Here both 4 and 3 are negative and are added but the sign of the result is also negative.

• In an equation if two same terms have opposite signs where (–)>(+) Then the result will also be negative. $\sf{Eg.-> -6 +2 = -4}$. Here both 6 and 4 are having opposite signs where number with negative sign is greater. Therefore the result is also negative.