Answer:
105
Step-by-step explanation:
273/13 × 5= 105
That's the correct answer
-12 + √(144- 4(-42)/12
-12 + √312/12
-12 + 17.6 / 12
= +.47 and -.47
Additive inverse of (5a² - 4a + 3) should be added to make them zero
(5a² - 4a + 3) + (-5a² + 4a - 3)= <u>5a² - 5a² </u> <u>- 4a + 4a</u> <u>+ 3 - 3</u>
= 0
21
