Samantha had to add this group of numbers (47 + 56 + 53), but she wanted to add them as quickly and as easily as possible. here is how she decided to add the numbers:
47 + 56 + 53 = (47 + 53) + 56 = 100 + 56 = 156.
which number property allowed her to add the numbers in this way?
the associative property of addition
the commutative property of addition
the identity property of addition

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step-by-step explanation:

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option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0