torlajap017
22.10.2019 •
Mathematics
Combine the like terms to create an equivalent expression:
−3x−6+(−1)
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Ответ:
-3x-7
Step-by-step explanation:
-3x-6-1
-3x+(6-1)
-3x-7
Ответ:
Part A
By the identity
(a2±2ab+b2)=(a±b)2
(16x2−8x+1)=(4x−1)2
so the side of the square is 4x-1
Part B
By the identity
(a2−b2)=(a−b)(a+b)
(81x2−4y2)=(9x−2y)(9x+2y)
then the sides of the rectangle are 9x-2y and 9x+2y
Step-by-step explanation: