Answer:
From my thinking prospection the answer should be 18....
Answer:
x = 
Step-by-step explanation:
7x² + 3 = 8x
7x² - 8x + 3 = 0
Applying the quadratic formula;
x = (8 ±
) ÷ 2(7)
x = (8 ± 0) ÷ 2(7) = 
A would be the correct answer you need to know his age from four and eight years ago to solve the problem
The square root of 343 is cubed 7 because 7x7x7 = 343
hope this helps
the answer to your question might be (B).