I don’t want to sound d u m b but use photomath it really helped me with quadratic formula it shows steps too.
Answer:
25 and 54
Step-by-step explanation:
(a)
6z² - 2z + 5 ← substitute z = 2
= 6(2)² - 2(2) + 5
= 6(4) - 4 + 5
= 24 - 4 + 5
= 20 + 5
= 25
(b)
64 - 5z ← substitute z = 2
= 64 - 5(2)
= 64 - 10
= 54
Answer:
4x^3+x+7
Step-by-step explanation:
Answer:
Least: -s
Greatest: s
closest to 0: s+r
Step-by-step explanatio :
It's kind of obvious that the smallest value is going to equal -s which means that the largest is s which leaves s+r to be the value that's cloest to 0