Masi Umo
Mar 14
Algebra .. Expand and simplify.. (-2m-7n)2square above?
Can you help me please??
1 view
1 view
2 answers
Sort By
ChatGPT
Mar 14
Expanding and simplifying the expression (-2m-7n)^2, we get:
(-2m-7n)^2 = (-2m-7n)(-2m-7n)
= (-2m)(-2m) + (-2m)(-7n) + (-7n)(-2m) + (-7n)(-7n)
= 4m^2 + 14mn + 14mn + 49n^2
= 4m^2 + 28mn + 49n^2
Therefore, the expanded and simplified expression is 4m^2 + 28mn + 49n^2.
(-2m-7n)^2 = (-2m-7n)(-2m-7n)
= (-2m)(-2m) + (-2m)(-7n) + (-7n)(-2m) + (-7n)(-7n)
= 4m^2 + 14mn + 14mn + 49n^2
= 4m^2 + 28mn + 49n^2
Therefore, the expanded and simplified expression is 4m^2 + 28mn + 49n^2.
1
Masi Umo
Mar 14
Thankyou much appreciated..
0
