In equation, (-d + e)( 4e + d) will be (-4ed - d^2 + 4e^2 +ed ) to simplify we combine the terms with the same variables such as d^2, e^2 and ed. The equation becomes, 4e^2 - 3ed - d^2 . The product has 3 terms with a degree of 2. The statements that are true are B and E.
It’s either A or B mate I’m really not sure
So c=3 years old and a= 25 ml (dose of adults)
so dose of child P=(3/3+12)*25=3/15*25=5 ml
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