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3 years ago

15

Three years ago, Sherman was twice as old as Clive. If Clive’s present age is c, which expression represents Sherman’s present a

ge in terms of Clive’s age?
A.
2c − 3

B.
2c + 6

C.
2(c − 3)

D.
2c + 3

1 answer:

Dennis_Churaev [7]3 years ago

5 0

The answer is D

Sherman would still be double Clive's age (2c) and he would have aged 3 years (+3)

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If x^2-13x+42=(x+A)(x+B), then find the value of 3A-B

tigry1 [53]

Answer:

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Step-by-step explanation:

Factorise

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Consider the factors of the constant term (+ 42) which sum to give the coefficient of the x- term (- 13)

The factors are - 6 and - 7, since

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