Answer:
The missing term is -2x²
Step-by-step explanation:
It is given that,
(10x - 4x² ) - (7x + ?) = 3x - 6x²
To find the missing term
Let 'M' be the missing term we can write the above equation,
(10x - 4x² ) - (7x + M) = 3x - 6x²
⇒ 10x - 4x² - 7x + M = 3x - 6x²
⇒ 10x - 7x - 4x² + M = 3x - 6x²
⇒ 3x - 4x² + M = 3x - 6x²
M = -6x² + 4x²
M = -2x²
