Answer:
b²-100d²
Step-by-step explanation:
(b-10d)(b+10d) *using foil method
b²+10bd-10bd-100d²
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Answer:
b²-100d²
Step-by-step explanation:
(b-10d)(b+10d) *using foil method
b²+10bd-10bd-100d²
b²-100d²