The price of a car was decreased by 10% to £729. What was the price before the decrease?
2 answers:
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Answer:
(x+2)(x+8)
Step-by-step explanation:
1.)find factors of the third expression(16)that will add up to give the second expression(10)
16=2×8. 10=2+8
2.)substitute those factors inplace of 10
3.)factorise using grouping method
Answer:
1: 10x-5
2: 6.5w-3y
3: 15+3n
4: not sure
