3 years ago

Solve for all values of x by factoring.' x2 + 10x + 21 = 0

Mathematics

2 answers:

Deffense [45]3 years ago

6 0

Answer:

x=-7,-3

Step-by-step explanation:

x2+10x+21

(x+7)(x+3)

x=-7,-3

nadezda [96]3 years ago

4 0

Answer:

Step-by-step explanation:

2x+10x=12x

12x=-21

x=-1.75

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Step-by-step explanation:

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