Back to Solve rational and radical equations — Problem 2 · Task Set 33

HSA.REI.A.2 Tutor Intake — Rational and Radical Equations

This short check helps your tutor understand where to start. Answer each question without help. If you are not sure, give your best try — the goal is to find what to work on together, not to grade you.

Grade 9·8 problems·~13 min·Common Core Math - HS Algebra·standard·hsa-rei-a-2
Work through problems with immediate feedback
A

Procedures

1.

A student tries to solve x+3=7\sqrt{x} + 3 = 7 by squaring both sides immediately,
writing x+9=49x + 9 = 49.

The student's error is that they squared before   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲   . The correct
first step is to subtract 3 from both sides to get x=\sqrt{x} = \underline{\hspace{5em}}.

what-was-skipped:
result: