Answer:
−b4+2b2+35
Step-by-step explanation:
b2+5)(−b2+7)
=(b2)(−b2)+(b2)(7)+(5)(−b2)+(5)(7)
=−b4+7b2−5b2+35
1.75
4 x 1.75 = 7 so that is the answer
Answer:
156.86
Step-by-step explanation:
136.40 + 15% is 20.46 added to 136.40 is 156.86
Answer:
Reciprocal of 5/18 is 18/5.
5/18 x 18/5 = 90/90
= 1