Can you please explain Test 7 section 4 question #22 ?

# Test 7 Section 4 Question 6

Hi Mike…SAT 7, Section 4, Q6: I now see the shortcut here (that both sides of the equation are perfect squares,) but if I did expand and FOIL the left side, wouldn’t I still get the correct “a” values even though it takes longer? I can’t get it to work !! Can you please show the alternate path math steps? Or is recognizing the perfect squares the ONLY way to solve this one ? Thanks!

# Test 7 Section 4 #7

Test 7 Section 4 #7

# Test 7 Section 4 #34

Test 7 Section 4 #34

# Test 7 Section 4 #37

Test 7 Section 4 #37

# Test 7, Section 4, Number 38

Hi Mike, Test 7, Section 4, Number 38. Probability: I keep losing track trying to think this through. Other than the table provided, is there a chart I can draw that will help me “see” the probabilities? Or, what’s the best / quickest way to manage this one? Thanks !

# Test 7 Section 4 #30

Can you do Test 7 Section 4 #30?

# Test 7 Section 4 #33

Can you help with 33 in test 7 section 4?

# Test 7 Section 4 #36

Test 7 Section 4 #36

# Test 7 Section 4 Number 28

Test 7 Section 4 Number 28

# Hi Mike, Can you please do practise test 7, section 4, question 29 (Whats the fastest way to do it which doesn’t involve using the distance formula for every answer option)

Hi Mike,

Can you please do practise test 7, section 4, question 29 (Whats the fastest way to do it which doesn’t involve using the distance formula for every answer option)