Question 511 MarkWhich of the following expression are polynomials? 8AnswerPolynomial, because the exponent of the variable of 8 or 8x° is 0 which is a whole number.View full question & answer→
Question 521 MarkFactorise the following: 1 - 64a3 - 12a + 48a2Answer1 - 64a3 - 12a + 48a2 = (1)3 - (4a)3 - 3 × 12 × 4a + 3 × 1 × (4a)2 [Using identity, (a - b)3 = a3 - b3 + 3a(-b)(a - b)] = (1 - 4a)3 = (1 - 4a)(1 - 4a)(1 - 4a)View full question & answer→