Bài tập toán cơ bản số 32

Created by T Madas Question 22 Factorize each of the following quadratic expressions a) x − x − = ( x + 1)( x − ) b) x + 16 x + 15 = ( x + )( x + 3) c) x − 19 x − = ( x + 1)( x − 5) d) x − 33x + = ( x − )( x − 1) e) x + x − = ( x + )( x − 1) f) x − 20 x + = ( x − 1)( x − ) g) x − 11x − 20 = ( x + )( x − ) h) x + x − 21 = ( x − )( x + 3) Created by T Madas Created by T Madas Question 23 Factorize each of the following quadratic expressions a) x − 27 x + 18 = ( x − 3)( x − ) b) x + x − = ( x + 3)( 3x − 1) c) x − x − = ( x + 1)( 3x − ) d) x + 19 x + 10 = ( x + )( 3x + ) e) x + x − 10 = ( x + )( x − 5) f) x − 13x − 15 = ( x + )( x − 3) g) x − 17 x + 10 = ( x − )( x − ) h) x − 13 x + = ( x − 3)( 3x − ) Created by T Madas