Answer:
15x5−x4−2x3+21x2+7x
Step-by-step explanation:
=(3x2+x)(5x3+−2x2+7)
=(3x2)(5x3)+(3x2)(−2x2)+(3x2)(7)+(x)(5x3)+(x)(−2x2)+(x)(7)
=15x5−6x4+21x2+5x4−2x3+7x
=15x5−x4−2x3+21x2+7x
Question is basically asking you do break down 66 to it's factors
11 x 6=66
11 is a prime number it can't be broken down
6 can be broken down to 3 x 2
therefore our answer is:
3 x 2 x 11
250-22 gives you 228 228/6 gives you how much each cake is, each cake is 38 grams
7/8+3/8=10/8
10/8=5/4
The answer as an improper fraction is 5/4 and 1 and 1/4 as a mixed fraction.
Hope I didn't mess up for your sake.