SOLUTION: Consider the following formula: y=3(x+5)(x-2)
Which of the following formulas is equivalent to this one?
(2) means square. (I did not know how to make the computer make the 2 s
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Which of the following formulas is equivalent to this one?
(2) means square. (I did not know how to make the computer make the 2 s
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Question 451662: Consider the following formula: y=3(x+5)(x-2)
Which of the following formulas is equivalent to this one?
(2) means square. (I did not know how to make the computer make the 2 square)
A. y=3x(2)+9x-30
B. y=3x(2)+3x-10
C. y=3x(2)+3x-30
D. y=3x(2)+3x-30 Answer by ewatrrr(24785) (Show Source):
Hi
Note the use of ^ (uppercase 6 on Your keyboard)
y = 3(x+5)(x-2)= 3() = 3x^2 + 9x - 30
(x+5)(x-2) Using Foil method of multiplying
F First terms x^2
O Outside terms -2x
I Inside terms 5x
L Last terms -10
OR
(x+5)(x-2) = x(x-2) + 5(x-2) = x^2 -2x + 5x - 10 =
