Question

Is X=-3 a solution of the equation 2X^2-7X+9=0?
class 10 icse​

Answer 1

Step-by-step explanation:

2X^2-7X+9=0

2(-3)^2-7(-3)+9=0

Ans = 48

Mark my ans as brainlist answer

Answer 2

Answer:

${2x}^{2} - 7x + 9 = 0 \\ = 2 \times { - 3}^{2} - 7 \times - 3 + 9 = 0 \\ = 18+ 21 + 9 = 0 \\ = 48 = 0 \\ 0 = - 48 \: hope \: answer \: is \: right$