Question

Factorise (by splitting middle term)
1. x^2-3x-34
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Answer 1

x²-3x-34=0

it cannot solve by splitting middle term

even computer cannot solve this

only by quadratic formula this eq can be solve

on comparing this eq with standard form of quadratic equation ax²+bx+c =0

we get ,

a= 1 ,b = -3 and c= -34

D= b² -4ac => D= -3² -4×1×-34 = 9+ 136 = 145

x= -b+- √D /2a = 3+- √145/2 = 3+- 12.04/2

when positive

x= 15.04 /2 = 7.02

when negative

x= 9.04/2 = 4.02

Answer 2

Answer:

ur answer

Step-by-step explanation:

hope it help ☺☺