Simplify 7xy+4yz-10yz
2 answers:
You might be interested in
Answer:
240
Step-by-step explanation:
To evaluate the expression for specific numerical values, put the numbers in place of the corresponding variables, and do the arithmetic. A calculator or spreadsheet can help you with this.
p^2q^2+pq–q^3–p^3
= 4²(-4)² +4(-4) -(-4)³ -4³
= 4⁴ -4² +4³ -4³
= 4²(4² -1) = 16(15) = 240
The value of the expression is 240.
Answer:
use the formula a^3+b^3= (a+b)-3ab(a+b)
in above question assume (a+b) as a and 1 as b
later in (a+b+1) take (a+b) as a and 1 as b
and use the formula (a+b)^2 = a^2+2ab+b^2
