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Dmitriy789 [7]
3 years ago
13

(a + 3)(a - 2) whats the answer

Mathematics
2 answers:
tresset_1 [31]3 years ago
8 0

You must FOIL (first, outside, inside, last)

First (The first number/variable of each parentheses must be multiplied together)

(a + 3)(a - 2)

a^{2}

Outside (The outside number/variable of each parentheses must be multiplied together)

(a + 3)( a - 2)

-2a

Inside (The inside number/variable of each parentheses must be multiplied together)

(a + 3)(a - 2)

3a

Last (The last number/variable of each parentheses must be multiplied together)

(a + 3)( a - 2)

-6

Now add/subtract each FOIL answer according to its sign

a^{2} - 2a + 3a - 6

Combine like terms

a^{2} + a - 6

Hope this helped!

~Just a girl in love with Shawn Mendes

const2013 [10]3 years ago
4 0

(a+3)(a-2)

a^2-2a+3a-6

a^2+a-6

Answer is a^2+a-6

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State true or false. (i) Cube of any odd number is even. F (ii) A perfect cube does not end with two zeros.T (iii) If square of
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i. Cube of any odd number is even. False

ii.  A perfect cube does not end with two zeros. True

iii.  If square of a number ends with 5, then its cube ends with 25. False

iv. There is no perfect cube which ends with 8. False

v. The cube of a two digit number may be a three digit number. False

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vii. The cube of a single digit number may be a single digit number. True

<h3>Reasons </h3>

i.  Cube of any odd number is even. This statement is false because the cube of odd numbers are also odd

ii.  A perfect cube does not end with two zeros. This statement is True because the cube of a two digit number cannot be a 3 digit number and therefore cannot end with two zeros.

iii.  If square of a number ends with 5, then its cube ends with 25. This statement is False

Using the illustration

35^2 = 35 x 35= 1225 , its square ends with 5

35^3= 35 x 35 x 35= 42875 which ends with 75

iv.  There is no perfect cube which ends with 8. This statement is False.

Using the illustration, the cube of 2 is given thus

2 * 2 * 2 = 8

The cube of 2 ends with 8

v. The cube of a two digit number may be a three digit number. This statement is False.

Using the illustration, 10 is a two digit number

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The cube of 10 which is a two digit number is not a three digit number and same applies to all two digit numbers

vi  The cube of a two digit number may have seven or more digits. This statement is False because the cube of a two digit number can only be a four digit number.

vii. The cube of a single digit number may be a single digit number. This statement is True because the cube of a single digit number can be a single, two or three digit number.

Learn more about cube numbers here:

https://brainly.in/question/6133463

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2 years ago
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krok68 [10]

Answer:

obtuse isosceles

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5 0
3 years ago
Write the following Arithmetic Sequence using a Recursive Formula: an = -7 + 3(n – 1)
Ostrovityanka [42]

9514 1404 393

Answer:

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Step-by-step explanation:

Comparing the given formula to the general form for the n-th term of an arithmetic sequence ...

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The recursive version of the sequence definition is ...

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So, the appropriate choice is ...

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