If f(x) = x2 + 2x - 4 and g(x) = 3x + 1 Find f(g(x)) = [? ]x² +[? ]x+ [?]
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<span>By the Pythagorean theorem
AB = </span>√(12²+5²) = √169 = 13 units
AB = </span>√(12²+5²) = √169 = 13 units
Answer:
» Collect like terms, r terms on the left hand side by subtracting r from both sides and adding st to both sides
» On the left hand side, factorise out r