Chapter 2: Introduction to Linear Polynomials
Chapter 2: Introduction to Linear Polynomials
Exercise
Question
Question: 2 (iii)
6 / 11
6 / 11
Find the value of the quadratic polynomial 7s^2 - 4s + 6 if:
(iii) s = 4
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Answer
1
Substitute s = 4 into the polynomial and simplify.
\text{$7 × ({color:#2E2EFF}4{/color})^2 - 4 × {color:#2E2EFF}4{/color} + 6$}
⇒
$7 × 16 - 16 + 6$
⇒
$112 - 16 + 6$
⇒
$96 + 6$
⇒
$102$
2
Write the value of the polynomial.
Answer: $102$