Question

5a²- 45a + 70 factories the following expression

Answer 1

Answer:

Step-by-step explanation:

5a²- 45a +70

=5a² - (35+10)a +70                                                                

=5a²- 35a- 10a +70

=5a (a- 7 ) -10 (a -7 )

( a -7 ) ( 5a -10 )