Question

factorise by splitting the middle term
x²-17x+70

please help​

Answer 1

The first term is, x2 its coefficient is 1 .

The middle term is, -17x its coefficient is -17 .

The last term, "the constant", is +70

1. x²-10x-7x-70
2. Add up the first 2 terms, pulling out like factors=x(x-10)
3. Add up the last 2 terms, pulling out common factors :
4. 7 • (x-10)
5. Add up the four terms of step 4 :
6. (x-7) • (x-10)