Question

Expand and simplify: (5x + 2)(3x - 5)
A. 15x^2 + 23x +10
B. 15x^2 - 10
C. 15x^2 - 4x + 10
D. 15x^2 - 19x
my answer: D please show me how to get the answer because my teacher gave me the answer but didn't show how to get it.

Answer 1

I am not sure

Answer 2

okay thanks for trying

Answer 3

@zepdrix @pooja195

Answer 4

Ever heard of FOIL?

Answer 5

what does that mean

Answer 6

do I have to time them both

Answer 7

yes

Answer 8

okay so 5x x 3x - 2 x 5 so 15x^2 - 10

Answer 9

(5x)(3x)+(5x)(−5)+(2)(3x)+(2)(−5)

Answer 10

15x^2 - 25x + 6x - 10

Answer 11

Good combine like terms

Answer 12

then you add the 25x + 6x right

Answer 13

so that will equal -19x so the answer is 15x^2 - 19x -10 correct

Answer 14

yes :)

Answer 15

thanks for your help

Answer 16

I have more if you could help me with them

Answer 17

ok :)