Asked by Jay
Jimmy began deriving the quadratic formula as shown.
ax² +bx +c = 0
x² +b/ax+c/a=0
x² +b/ax=−c/a
x² +b/ax+(b/2a)² =−c/a+(b/2a)²
What should Jimmy do next?
Subtract x² from each side.
Factor the trinomial.
Add x² to each side.
Subtract b2a from each side.
ax² +bx +c = 0
x² +b/ax+c/a=0
x² +b/ax=−c/a
x² +b/ax+(b/2a)² =−c/a+(b/2a)²
What should Jimmy do next?
Subtract x² from each side.
Factor the trinomial.
Add x² to each side.
Subtract b2a from each side.
Answers
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