Factor x3 – 7x2 – 5x + 35 by grouping. what is the resulting expression? (x2 – 7)(x – 5) (x2 – 7)(x + 5) (x2 – 5)(x – 7) (x2 + 5)(x – 7)

factor 15x3 – 5x2 + 6x – 2 by grouping. what is the resulting expression? (5x2 + 2)(3x – 1) (5x2 – 2)(3x + 1) (15x2 + 2)(x – 1) (15x2 – 2)(x + 1)

1) option (3) is correct,

2) option (1) is correct,

Step-by-step explanation:

Factorization is writing an expression in lower factor form such that when we multiply it we get back the same expression.

1) Given

We have to factorize the expression by grouping

Taking common from first two terms and -5 from last two terms , we get,

Thus, we get,  

Option (3) is correct.

2) Given

We have to factorize the expression by grouping

Taking common from first two terms and 2 from last two terms , we get,

Thus, we get,

Option (1) is correct.

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: