wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Question 1 (iv)

Find the roots of the quadratic equations by using the quadratic formula in the following question.


x2+7x10=0


Open in App
Solution

Given equation is x2+7x10=0
on comparing with ax2 + bx + c = 0, we get
a = - 1, b = 7 and c = - 10
by quadratic formula, x=b±b24ac2a
=(7)±(7)24(1)(10)2(1)=7±49402
=7±91=7±32=42, 102=2, 5
So, 2 and 5 are two roots of the given equation.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Quadratic Formula
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon