Simplify:3x(4x-5)+3andfinditsvaluesfor(i)x=1and(ii)forx=1/2
Answers
Answered by
0
Answer:
(i) 0
(ii) -1.5
Step-by-step explanation:
3x(4x-5)+3
= 12x² - 15x + 3
(i) for x = 1
12 * (1)² - 15 * 1 + 3
= 12 - 15 + 3
= 0
(ii) for x = 1/2
12 * (1/2)² - 15 * (1/2) + 3
= 12 * (1/4) - 7.5 + 3
= 3 - 7.5 + 3
= -1.5
(i) 0 (ii) -1.5
Hope it helps.
Please mark my answer as the brainliest :)
Similar questions