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schepotkina [342]
3 years ago
15

If x2 + 6x + c = (x + d)2, then d

Mathematics
2 answers:
viktelen [127]3 years ago
8 0

Answer:

d = 3

Step-by-step explanation:

Expand the right side and compare the coefficients of like terms

x² + 6x + c = x² + 2dx + d²

For the 2 sides to be equal then coefficients of like terms must be equal

compare coefficients of x- terms, then

2d = 6 ⇒ d = 3



eimsori [14]3 years ago
7 0

Answer:

c=9

d=3

Step-by-step explanation:

i just took the test hows yall day

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