Ineed in 2 questions, and show your work!

which expression best represents the area of the rectangle? ( the longer side is x+12, and the shorter side is x-5)

a) x2 + 7x + 60

b) x2 + 17x + 60

c) x2 − 7x + 7

d) x2 + 7x − 60

multiply: (2x − 5)(3x2 − 4x + 2)

a) 6x3 − 23x2 + 24x − 10
b) 6x3 − 7x2 + 24x − 10
c) 6x3 − 23x2 + 16x − 10
d) 6x3 − 7x2 + 16x − 10

Step-by-step explanation:

The formula of an area of a rectangle:

l - length

w - width

We have l = x + 12 and w = x - 5. Substitute:

      use FOIL (a + b)(c + d) = ac + ad + bc + bd

        combine like terms

     use the distributive property a(b + c) = ab + ac

      combine like terms

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

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step-by-step explanation: