The trick to this problemis to see that x² + 2ax + a²can be factored into (x +a)².Now you can rewrite the equationas (x + a)² = 16,so you knowthat x +ahas to equal 4or -4.Choice(B)is the rightanswer.
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SquadronLeader
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a)(x-b) is equal to x^2-xb-ax-ab= x^2 -x(b+a) –ab or = x^2 -b(x+a) –ax. The x minus a and b takes the quadratic formula and includes steps that should govern with above formula by operating and come across in an identify of same sort.
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The trick to this problem is to see that x² + 2ax + a² can be factored into (x + a)². Now you can rewrite the equation as (x + a)² = 16, so you know that x + a has to equal 4 or -4. Choice (B) is the right answer.
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Question:
lf ײ+ax+a²=16, Which of the following could be the value of ×+a?
Answer:
D.2
Explanations:
a)(x-b) is equal to x^2-xb-ax-ab= x^2 -x(b+a) –ab or = x^2 -b(x+a) –ax. The x minus a and b takes the quadratic formula and includes steps that should govern with above formula by operating and come across in an identify of same sort.
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