(c) If 2a + 7b = 11 and ab = 2, find the value of 4a2 + 49b2.
2 answers:
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Answer:
(x) =
x + 8
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 9(x - 8) ← divide both sides by 9
= x - 8 ( add 8 to both sides )
+ 8 = x
Change y back into terms of x with x = (x) , thus
(x) =
x + 8