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lord [1]
3 years ago
15

What strategies can be used whn multiplying

Mathematics
2 answers:
irakobra [83]3 years ago
8 0

Relate multiplication to addition

Start with the multiples of zero and one

Cover the multiplication table, starting with the “easy” numbers

Break memorization down into easy steps

lesya [120]3 years ago
5 0

Answer:

repeated addition, skip counting, or equal groups

<em>Step-by-step explanation:</em>

repeated addition

for example if you do 3x4 thats equals 12. to do repeated additoin you can do 3 + 3 + 3 + 3 =12 OR 4+4+4=12

skip counting

3 x 4 =12

4,6,8,12

3,6,9,12

equal groups

4 x 3 =12

(see attachment)

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No, the pair is not a solution to the equation.

Step-by-step explanation:

For the pair to be a solution to the equation, x = -2 must lead to y = 8, o =r vice versa. This leads to being able to solve it two ways either through x or through y.

I'll solve it through x:

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with x = -2

y = -2 * - 2 - 1

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y = 3

Since y = 3, when x = -2 the pair (-2,8) is not a pair to the solution of the equation.

PS: You can double check by solving through y and you'll find x = -4.5

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Question 1
olga_2 [115]

Step-by-step explanation:

(7r+5s)^2

use the pattern

(a+b)^2=a^2+2ab+b^2

(7r+5s)^2=(7r+5s)(7r+5s)

Apply FOIL method to multiply the parenthesis

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(7r+5s)(7r+5s)\\49r^2+35rs+35rs+25s^2\\49r^2+70rs+25s^2

Compare the expression with (a+b)^2=a^2+2ab+b^2

The value of a=7r and the value of b=5s

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a=7r ,  b=5s

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4 years ago
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