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Assoli18 [71]
4 years ago
7

Expand and simplify (x-3)(x+5)

Mathematics
2 answers:
Natalija [7]4 years ago
8 0

Answer:

x^2+2x-15

Step-by-step explanation:

x^2+5x-3x-15

=x^2+2x-15

creativ13 [48]4 years ago
7 0

Answer:

x² + 2x -15

Step-by-step explanation:

by using FOIL method (see attached for reference),

(x-3)(x+5)

= (x)(x) + (x)(5) + (-3)(x) + (-3)(5)

= x² + 5x - 3x -15

= x² + 2x -15

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Ten times the square of a non-zero number is equal to forty times the number
S_A_V [24]
To convey as an algebraic expression simply break down the statements and use any variable to represent the number in the sentence.

10 • x^2 = 40x
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X(x - 4) = 0

X = 0

X - 4 = 0
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fiasKO [112]
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4 0
3 years ago
6.) Alan, Becky, Jesus, and Mariah are four students in the chess club. If two of these students will be selected to represent t
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Let's begin by listing out the information given to us:

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To calculate the combination of 2 students to be chosen, we use:

\begin{gathered} ^4C_2=\frac{n!}{(n-r)!}=\frac{4!}{(4-2)!}=\frac{4!}{2!} \\ ^4C_2=\frac{4\cdot3\cdot2\cdot1}{2\cdot1}=\frac{4\cdot3}{1}=12 \\ ^4C_2=12 \end{gathered}

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2 years ago
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shepuryov [24]

Answer:

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Step-by-step explanation:

I don't know what your answers are but all I did was devide 412 by 2 to get 206, then multiplied 206 and 412 (width x length) to get 84, 872 square feet.

oh no im just noticing that you said 4 1/2 please ignore my answer omg

6 0
3 years ago
Read 2 more answers
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