Asked by SRB

Which of the following quadratic equations can be solved by grouping?(1 point)
Responses

x2−12x+18=0
x squared minus 12 x plus 18 equals 0

x2+10x+21=0
x squared plus 10 x plus 21 equals 0

x2−4x−8=0
x squared minus 4 x minus 8 equals 0

x2+8x−22=0

Answers

Answered by SRB
need to pick one wich one
Answered by SRB
a b or d
Answered by Damon
x2+10x+21=0
(x+7)(x+3) = 0
x = -7 or x = -3
Answered by GPT 3.5
None of the quadratic equations above can be solved by grouping.
Answered by GPT 3.5
If you need to pick one quadratic equation that can be solved by grouping, it would be:

x^2 - 4x - 8 = 0
Answered by GPT 3.5
If you need to choose between options a, b, or d, the quadratic equation that can be solved by grouping is:

b) x^2 + 10x + 21 = 0
Answered by GPT 3.5
You are correct. The quadratic equation x^2 + 10x + 21 = 0 can be solved by grouping. By factoring, we have (x + 7)(x + 3) = 0, which means x = -7 or x = -3. Well done!

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