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xeze [42]
3 years ago
9

Find the missing coefficient. (5d − 7)(5d − 6) = 25d2 ++ 42 5 65 –5 –65

Mathematics
2 answers:
Igoryamba3 years ago
7 0

Answer:

-65d

Step-by-step explanation:

(5d − 7)(5d − 6)

(5d - 7)(5d - 6)

Multiply it using FOIL method to find the missing term

Multiply 5d inside the second parenthesis and then multiply -7 inside second parenthesis

5d \cdot 5d= 25d^2

5d \cdot -6= -30d^2

-7 \cdot 5d=-35d

-7 \cdot -6=42

Now write all the terms together

25d^2-30d-35d+42

Combine like terms

25d^2-65d+42

HEre -65d is missing

andrew11 [14]3 years ago
3 0
I do believe it is -65d because the equation will look like this in the end
-65d=-65d.
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