Cuica sudil.
enter each answer in the format (x+1)(x+2), x(x+1), or (x+1)^2, with no spaces.
1.22 - 4x +4=1
2. 2 – 7x + 6 =
3. x2 + 13x + 40 =
4. x2 - x - 72 =
5. x2 – 3x +2=
6. 22 – 7x + 12 =
7. x2 + 2x - 48 =
8. x2 + 3x – 28 =
9. x2 + 3x =
10. 22 – 2x =
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Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality