Written as a simplified polynomial in standard form, what is the result when (3x+6)² is subtracted from 4?
-
44 - ( 9x² + 36 x + 36 ) = 8 - 36 x - 9 x²
The result is: 44 - (3x+6)^2 = - 9x^2 - 36x + 8 when simplified
44 - (3x + 6)²
i.e. 44 - (9x² + 36x + 36)
=> 44 - 9x² - 36x - 36
so, - 9x² - 36x + 8
:)>
Written as a simplified polynomial in standard form, what is the result when (3x+6)² is subtracted from 4
(3x+6)² = 9x² + 36x + 36
4 - (9x² + 36x + 36) =
-9x² - 36x - 32..................ANS
44 - (9x^2 + 36x + 36)
= -(9x^2 + 36x - 8)
Method 1
44 - (3x+6)² = 44 - (9x² + 36x + 36) ← (a+b)² = a² + 2ab + b²
= 44 - 9x² - 36x - 36
= -9x² - 36x + 8 ← ax² + bx + c
standard polynomial form
Method 2
44 - (3x+6)² = 44 - (3x+6)(3x+6)
= 44 - [(3x+6)(3x+6)] ← Now, FOIL what's inside the brackets
= 44 - [3x*3x + 3x*6 + 6*3x + 6*6]
= 44 - [9x² + 18x + 18x + 36]
= 44 - [9x² + 36x + 36] ← Now, distribute the minus sign
= 44 - 9x² - 36x - 36 ← Now, collect like terms
= -9x² - 36x - 36 + 44
Copyright © 2024 1QUIZZ.COM - All rights reserved.
Answers & Comments
-
44 - ( 9x² + 36 x + 36 ) = 8 - 36 x - 9 x²
The result is: 44 - (3x+6)^2 = - 9x^2 - 36x + 8 when simplified
44 - (3x + 6)²
i.e. 44 - (9x² + 36x + 36)
=> 44 - 9x² - 36x - 36
so, - 9x² - 36x + 8
:)>
Written as a simplified polynomial in standard form, what is the result when (3x+6)² is subtracted from 4
(3x+6)² = 9x² + 36x + 36
4 - (9x² + 36x + 36) =
-9x² - 36x - 32..................ANS
44 - (9x^2 + 36x + 36)
= -(9x^2 + 36x - 8)
Method 1
44 - (3x+6)² = 44 - (9x² + 36x + 36) ← (a+b)² = a² + 2ab + b²
= 44 - 9x² - 36x - 36
= -9x² - 36x + 8 ← ax² + bx + c
standard polynomial form
Method 2
44 - (3x+6)² = 44 - (3x+6)(3x+6)
= 44 - [(3x+6)(3x+6)] ← Now, FOIL what's inside the brackets
= 44 - [3x*3x + 3x*6 + 6*3x + 6*6]
= 44 - [9x² + 18x + 18x + 36]
= 44 - [9x² + 36x + 36] ← Now, distribute the minus sign
= 44 - 9x² - 36x - 36 ← Now, collect like terms
= -9x² - 36x - 36 + 44
= -9x² - 36x + 8 ← ax² + bx + c
standard polynomial form