यदि $x = 4$ है, तो $2x^2 + 3$ का मान क्या होगा?
A35
B19
C67
D64
Answer & Solution
Correct answer: A. 35
पहले वर्ग करने पर 16 प्राप्त होता है, दोगुना करने पर 32, और 3 जोड़ने पर 35 प्राप्त होता है।
Keep practising Elementary Algebra
Browse all Elementary Algebra questions for RRB NTPC, or explore more Mathematics topics.
Related questions
RRB NTPC · Algebraic ExpansionsRRB NTPC · Solving Linear EquationsExpand and simplify the algebraic expression: (x + 3)(x - 3)Evaluate the quadratic expression 2x^2 + 5x - 4 when x = 3:If a + b = 10 and a - b = 4, what is the value of a?Solve for x: 3x - 7 = 14. What is the value of x?RRB NTPC · Solve Linear EquationsWhen a system of two lines on the plane has no intersection, what is its solution set?