OCR C1 — Question 5

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
TopicPolynomial Division & Manipulation
  1. Given that
$$\left( x ^ { 2 } + 2 x - 3 \right) \left( 2 x ^ { 2 } + k x + 7 \right) \equiv 2 x ^ { 4 } + A x ^ { 3 } + A x ^ { 2 } + B x - 21 ,$$ find the values of the constants \(k , A\) and \(B\).
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