Q.1 Solve each of the following equations giving your answer correct to 2 decimal places.
c) x²+3x-2
d) x²+9x-1
e) x² -2/9x
f) x²+0.2x
g) x²-1.4x
Q.2 Solve each of the following equations.
a) x(x-3)=5x+1
b) (x+2)(x-5)=4x
c) x(x-4)=2(x+7)
Answers
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Answer:
Q.2 (a) 4 ± √17
(b) (7 ± √89)/2
(c) -1 ± √15
Step-by-step explanation:
Sorry, I could not solve the Q.1 . But you can solve the Q.2 by using the quadratic formula.
The quadratic formula for ax^2 + bx + c = 0 type equations is:
x = {-b ± √(b^2 - 4ac)}/ 2a
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