Answer:
18= 2 x 3 x 3
Step-by-step explanation:
Basically, we branch out 18 into its prime factors. So, the prime factorization of 18 is 18= 2 × 3 × 3. A factor tree is not unique for a given number. Instead of expressing 18 as 2 × 9, we can express 18 as 3 × 6.
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Hope this helped :)
Answer: -2
Step-by-step explanation:
Substitute 2 for z:
7*(2)^2 - 3*(2) - 10
7*4 - 3*2 - 10
14 - 6 - 10
-2