SOLVING QUADRATIC EQUATIONS

Quiz by James Robin Dela Cruz

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### Measures 1 skill fromGrade 9MathematicsPhilippines Curriculum: Grades K-10 (MELC)

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- Q1
What is the other term for the values of variables obtained in an equation? (Use lower case letter in typing the answer.)

freetextm://x-intercepts: roots: solution set: root

30sM9AL-Ia-b-1 - Q2
The other term for the obtained values of the variable in a given equation

scrambled://ROOTS

30sM9AL-Ia-b-1 - Q330sM9AL-Ia-b-1
- Q4
In solving equations using factoring, enumerate the three-step word or phrases in right manner.

EXTRACTING THE ROOTS

jumble://STANDARD FORM, FACTORING, ZERO PROPERTY OF EQUALITY

IDENTIFYING THE COEFFICIENTS

PERFECT SQUARE TRINOMIAL

30sM9AL-Ia-b-1 - Q560sM9AL-Ia-b-1
- Q660sM9AL-Ia-b-1
- Q760sM9AL-Ia-b-1
- Q8
What is the best process to apply in solving an incomplete quadratic equation that has no linear term? (USE UPPER CASE LETTERS TO TYPE YOUR ANSWER.)

freetext://EXTRACTING THE ROOTS

30sM9AL-Ia-b-1 - Q9
What is the best process to apply in solving an incomplete quadratic equation that has no constant term? (USE UPPER CASE LETTERS TO TYPE YOUR ANSWER.)

freetext://FACTORING

30sM9AL-Ia-b-1 - Q10
Regroup the following equations from complete quadratic equation to incomplete quadratic equation.

sorting://COMPLETE QUADRATIC EQUATION|$2x^2+5x=10$, $9x^2+4x+10=9$:INCOMPLETE QUADRATIC EQUATION|$5x^2+2x=-8x$, $x^2-15=10$

60sM9AL-Ia-b-1 - Q11
Regroup the following equations as factorable and not factorable.

sorting://FACTORABLE|$x^2-25=0$,$^\{x^2-4x+4x=0\}$:NOT FACTORABLE|$x^2+25=0$,$x^2+x+2=0$

120sM9AL-Ia-b-1 - Q12
Link the following equations to their correct roots.

linking://$x^2-3x-10=0$|{-2,5}:$x^2+3x-10=0$|{-5,2}:$x^2+2x-15=0$|{-5,3}:$x^2-3x-15=0$|{-3,5}

300s - Q13
Link to the constant term the following expressions to make it a perfect square trinomial.

linking://$x^2-4x+$|4:$x^2+8x+$|16:$x^2+x+$|$\backslash frac\{1\}\{4\}$:$x^2-3x+$|$\backslash frac\{9\}\{4\}$

300sM9AL-Ia-b-1 - Q14
Arrange in order the steps in solving quadratic equations using the quadratic formula.

ordering://Get the standard form|1st step: Identify the coefficients a b and c|2nd step: Substitute the coefficient to the formula|3rd step: Simplify the expression to obtain the roots|4th steps

30s - Q15
Arrange in order the steps in solving quadratic equations using factoring.

ordering://Get the standard form|1st step: Factor the quadratic expression|2nd step: Apply zero property of equality|3rd step: Simplify each equation to obtain the roots|4th steps

60sM9AL-Ia-b-1