YO I NEED HELP ON THIS 100 POINTS Q1: In order to complete the factoring by grouping process, what must you have before you can GROUP terms? Why is it important?

Q2: How do you approach finding the Greatest Common Factor (GCF)?

Q3: How can you check your answer after factoring?

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle. what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle. what is the measure of angle a? enter your answer in the box. m∠a= 3.)quadrilateral abcd is inscribed in this circle. what is the measure of angle b? enter your answer in the box. m∠b= °4.)quadrilateral abcd is inscribed in this circle. what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle. what is the measure of angle c? enter your answer in the box.°