Answer:
that this 6+6
Step-by-step explanation:
78+90 look than
Answer:
1350
Step-by-step explanation:
use binomial general term expression for (r+1)th term
get the power of x in terms of r.
equate the expression to -2 and solve for r.
replace value of r and calculate the coefficient.
10 cm would stay as a 10 cm
14cm would round down to a 10