Quadratic formula:
What do we have:
a=4
b=-10
c=5
Substitude:
Solve:
Cancel the common terms:
How can you know if this equation is true? 1/2 + 3/8 = 4/10 = 2/5
1 answer:
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Answer:
see attached
Step-by-step explanation:
Each spot in the triangle is the sum of the two numbers immediately above. The middle number of row 2 will be 1+1 = 2. The two numbers in row 3 will be 1+2 = 3 and 2+1 = 3. It continues like this. The second number in each row is the row number. Each row is symmetrical about the center.
