Multiply (4x - 5)(4x + 5).
a) 8x2 - 10
b) 16x2 - 25
c) 8x2 - 40x - 10
d) 16x2 - 40x - 25

Solve: 3x+y=6 4x-2y=18 show all work !

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k