Question

If A=4x2-6x+3,B=-4x2-7x+5 and C=3x2-8x+6, Find 2A+2B+2C​

Answer 1

Answer:

the answer must be 12/7

Answer 2

Answer:

6x² - 42x + 28

Step-by-step explanation:

A = 4x² - 6x + 3

so, 2A = 2 ( 4x² - 6x + 3 ) = 8x² - 12x + 6

B = 4x² - 7x + 5

so, 2B = 2 ( - 4x² - 7x + 5 ) = 8x² - 14x + 10

C = 3x² - 8x + 6

so, 2C = 2 ( 3x² - 8x + 6 ) = 6x² - 16x + 12

Now,

2A + 2B + 2C

= ( 8x² - 12x + 6 ) + ( - 8x² - 14x + 10 ) + ( 6x² - 16x + 12 )

= 8x² - 8x² + 6x² - 12x - 14x - 16x + 6 + 10 + 12

= 6x² - 42x + 28 ( IT IS YOUR ANSWER )