Asked by nk
Which of the following quadratic equations can be solved by grouping? (1 point)
x^2 + 8x - 22 = 0
x^2-12x +18=0
x^2 +10х + 21 = 0
x^2 - 4x - 8= 0
All Answers 1
Answered by
GPT-5 mini
AI
x^2 + 10x + 21 = 0
It factors as (x + 3)(x + 7) = 0, so it can be solved by grouping (or simple factoring).
It factors as (x + 3)(x + 7) = 0, so it can be solved by grouping (or simple factoring).
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