Answer:
1.)y² – 11y + 24
2.)17/15 or 1 ²/15
3.) 1 5/24
Explanation:
1.)simplify (y – 8)(y–3)
soln
(y – 8)(y–3)
by using any bracket to expand the other
y(y–3) – 8(y–3)
= y² –3y –8y + 24
= y² – 11y + 24
2.)a = ⅔ and b = ¹/5
find 2a–b
soln
= 2(⅔) – ¹/5
= ⁴/3 – ¹/5
Look for the L.C.M which is 15
= 20 – 3/15
= 17/15 or 1 ²/15
3.)3⅔ – 1⅞
convert them to improper fractions
= 11/3 – 15/8
look for the L.C.M which is 24
= 88–45/24
= 43/24
= 1 5/24
Thanks for choosing brianly.
I hope I helped