cbawesome8
27.08.2019 •
Mathematics
The expression (x+3)(x+5) is equivalent to?
x2−2x+15
x2+2x+15
x2+8x+15
x2−8x+15
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Ответ:
B. x^2 + 8x + 15
Step-by-step explanation:
Use FOIL
First
Outside
Inside
Last
F: x * x = x^2
O: x * 5 = 5x
I: 3 * x = 3x
L: 3 * 5 = 15
Combine like terms
5x + 3x = 8x
x^2 + 8x +15
B. x^2 + 8x + 15
Ответ:
262 m squared