Answer:
(x + 7) cm
Step-by-step explanation:
Factor the given quadratic expression.
Solution:
x² + 10x + 21
(x + 3) (x + 7)
Therefore, the other dimension is x+7 cm.
NOTE: You can also divide the given quadratic expression with x + 3 to obtain the other dimension. You can use long division method or synthetic division. Any method will do.
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Answers & Comments
Answer:
(x + 7) cm
Step-by-step explanation:
Factor the given quadratic expression.
Solution:
x² + 10x + 21
(x + 3) (x + 7)
Therefore, the other dimension is x+7 cm.
NOTE: You can also divide the given quadratic expression with x + 3 to obtain the other dimension. You can use long division method or synthetic division. Any method will do.